Does it worth it?

Solution
No. Simple as that.

That's $1,500 USD, so pushing $2k Canadian. While CF 290X's are decent, you're also giving up warranty etc.
Those are older components - and an Enermax PSU. While Enermax have a couple of good PSU options, I wouldn't bank on the seller actually used one.
It's probably an 'ok' PSU at best.

64GB RAM is also pointless for all but the most extreme tasks.

For the same cost (or less) in CAD, you can do much better. I'll post a build to give you an idea.

PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i7-6700K 4.0GHz Quad-Core Processor ($428.94 @ Vuugo)
CPU Cooler: Noctua NH-D15 82.5 CFM CPU Cooler ($108.99 @ Newegg Canada)
Motherboard:...
No. Simple as that.

That's $1,500 USD, so pushing $2k Canadian. While CF 290X's are decent, you're also giving up warranty etc.
Those are older components - and an Enermax PSU. While Enermax have a couple of good PSU options, I wouldn't bank on the seller actually used one.
It's probably an 'ok' PSU at best.

64GB RAM is also pointless for all but the most extreme tasks.

For the same cost (or less) in CAD, you can do much better. I'll post a build to give you an idea.

PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i7-6700K 4.0GHz Quad-Core Processor ($428.94 @ Vuugo)
CPU Cooler: Noctua NH-D15 82.5 CFM CPU Cooler ($108.99 @ Newegg Canada)
Motherboard: ASRock Z170A-X1 ATX LGA1151 Motherboard ($123.00 @ Vuugo)
Memory: GeIL EVO POTENZA 16GB (2 x 8GB) DDR4-2400 Memory ($77.99 @ Newegg Canada)
Storage: Samsung 850 EVO-Series 250GB 2.5" Solid State Drive ($114.99 @ Memory Express)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($59.94 @ Vuugo)
Video Card: Gigabyte GeForce GTX 1070 8GB Windforce OC Video Card ($523.72 @ DirectCanada)
Case: Corsair Air 540 ATX Mid Tower Case ($149.99 @ DirectCanada)
Power Supply: EVGA SuperNOVA GS 550W 80+ Gold Certified Fully-Modular ATX Power Supply ($94.99 @ Memory Express)
Operating System: Microsoft Windows 10 Home OEM 64-bit ($115.90 @ DirectCanada)
Total: $1798.45
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-09-07 17:50 EDT-0400

You could scale it back significantly & still have an amazing rig (i5-6600K + GTX 1060 for example).

No shipping, all quality components and you'll actually get warranty too

I look at it again, and there's no OS in the build either! So that's $2k CAD + ~$100 or so, at least.
A stronger single GPU is always preferred over either CF or SLI.

All in all, at $2,100 - $2,200 'all in' (CAD) you could pair an i7-6700K with a GTX 1080, or close enough.
Whether that's necessary though, depends on your resolution. 1060 is sufficient for 1080p, 1070 for 1440p, 1080 for 4K (in very simplistic senses anyway).

*EDIT* Nevermind the PSU comment, as I see it's a Platimax 1350W. A solid PSU (overkill, absolutely, but solid).
All of those components have the potential to be 3+ years old, so most are out of warranty (if warranties for the components are even transferrable to begin with). Judging from the post, overkill PSU etc, I'd expect everything has been 'ridden hard' too.

I'd say that Craiglist listing is worth.... maybe $800 USD / $1,000 CAD today to the right buyer - but that would be a select few buyers. Building new, with warrantied components would be a much, much better idea
 
Solution


Yea but what about the privilege to have an extreme processor (aka 3960x), 64gb of ram, 1 tb SSD in raid 0, liquid cooling, sound card, extreme overclock motherboard and a 1350w platinium psu?



What are those little issues you see?

 


For the AIR 540:
It should, but does not, come with a filter on the bottom. Where the 2 x 3.5" drive spaces are.
There are 4 big open spaces, just sucking in dust. Fail on Corsair not to include a dust filter, but big fail on the owner/builder not to put one on.
You can see it in image '2 of 19'.

On the other side, all the cables for the PSU and SSD's are just crammed in.

4 x 850 EVO, presumably in RAID something?
Why on earth would you do that?

What other drives? None? Fail.


Bottom line - too much money for used parts, that you cannot test first, and dubious construction.
Just because he says it is special does not mean it is special.
 


Ok, thanks for the info. Just one thing : who do you think I should pick as the solution?

 


Do you want flash, or do you want a solid, functional PC, of all new parts and warranty, for less money?

"1 tb SSD in raid 0" = fail
"sound card" = not needed
" liquid cooling" = meh
"1350w platinium psu" = way overkill = flashy
 


What about it? An extreme processor, that's likely been ridden hard? No thanks.
Nothing wrong with a 'used' CPU generally, as they are one of the most robust components, but you've no way of knowing how much voltage was used to obtain X overclock etc.

64GB RAM.... again, what about it? Do you have an need for 64GB RAM? For a gaming rig 8-16GB is more than sufficient. 64GB is only utilized in a few different tasks - you can include 64GB DDR4 in a new rig for not too much extra (although it would be a complete waste IMO).

Sound card? Unnecessary

Liquid cooling? To each their own, but the Noctua NH-D15 competes with most of the upper end liquid cooling.
Could easily have an AIO liquid (H100i, Kraken X61 etc) for right around the same money.

1350W Platinum PSU? For what reason? Again, unnecessary. Although potentiall ~3 years old, so it's beginning to degrade. Enermax provides a 5 year warranty (no idea whether it's transferrable). A warranty period is a reasonable expectation of a lifespan of a PSU - although you can generally use it for longer, I wouldn't bank on it for longer than the warranty period.