I have no knowledge of Sri lanka prices and availability.
Some comments on the parts list:
If this is for gaming, are you looking at fast action games, or at more like strategy, MMO or sims?
For fast action, look for a good graphics card, for strategy games, look at a processor with good single thread performance.
Budget is obviously an issue.
1. I3-10100F is a good all around budget processor.
If the price differential is minimal, get the non F version with integrated graphics to get you started.
2. ANY lga 1200 motherboard will do. differences are relatively minor.
3. Case is ok. Likely, you are paying for RGB bling.
Look for a case with at least two front 120mm intake fans.
In the US, the fractal design focus G is inexpensive:
https://www.newegg.com/black-fractal-design-focus-g-atx-mid-tower/p/N82E16811352069
4. Graphics card strength is reasonably balanced with the processor.
RX570 is about comparable to the GTX1060, but it will use more power.
My suggestion is to pay a modest bit more for the non F processor and defer your graphics card purchase.
The graphics card market is crazy now.
5. I3-10100 comes with a perfectly adequate cooler. And, avoid liquid cooling
6. On ram, 3200 speed amy not be possible, depending on the motherboard you select.
Look at the ram QVL support list for the selected motherboard. I think 2666 ram will be adequate.
7. A 500gb ssd is very good. I tend to prefer Samsung and intel for quality.
You may find intel 500gb 660P or 670P pcie devices to be reasonably priced.
8. What would the HDD be used for?
A small HDD is probably not worth it. Perhaps if only to store video files or backups.
A single 1tb ssd for the C drive would be easier to manage.
9. A well cooled pc will only need two 120mm front intakes and a single 120mm rear exhaust.
RGB costs more and you will tire of it soon.
10. I like the silverstone psu better.
Co not buy a cheap psu.
A top quality power supply is a long term investment. I would look for a unit with a 7 to 10 year warranty.
Seasonic Focus or corsair RM would be in that category.
Also, to allow for a future graphics upgrade, consider 650/750w. It usually does not cost much more.
A psu will only use the power demanded of it, regardless of the max capability.
As a first time builder, here is
MY build process:
Before anything, while waiting for your parts to be delivered, download
and read, cover to cover your case and motherboard manual.
Buy a #2 magnetic tip philips screwdriver.
I find it handy to buy a power switch like this for testing.
https://www.newegg.com/p/N82E16812119009?Description=power switch&cm_re=power_switch--12-119-009--Product&quicklink=true
1. I assemble the critical parts outside of the case.
That lets me test them for functionality easily.
A wood table or cardboard is fine.
2. Plug in only the necessary parts at first. Ram, cpu, cooler, psu.
Do not force anything. Parts fit only one way.
Attach a monitor to the integrated motherboard adapter if you have one, otherwise to the graphics card.
- If your motherboard does not have a PWR button, momentarily touch the two pwr front panel pins with a flat blade screwdriver.
- Repeatedly hit F2 or DEL, and that should get you into the bios display.
- Boot from a cd or usb stick with memtest86 on it. memtest will exercise your ram and cpu functionality.
- Install windows.
- Install the motherboard cd drivers. Particularly the lan drivers so you can access the internet.
Do not select the easy install option, or you will get a bunch of utilities and trialware that you don't want. Drivers only.
- Connect to the internet and install an antivirus program. Microsoft defender is free, easy, and unobtrusive.
- Install your graphics card and driver if you tested with integrated graphics.
You will need to remove the graphics card later to install your motherboard in the case.
As a tip when screwing the motherboard into the posts, give the screw a small counterclockwise turn until you feel a click.
That lets you know that the screw will engage properly.
Make a note of how the graphics card latches into the pcie slot.
The mechanism will be hidden under the card and may be difficult to work if you have not previously checked how.
- Update windows to currency.
- Only now do I take apart what I need to and install it in the case.
- Now is the time to reinstall your graphics card.