Hey there,
Well, I don't know where to start
Firstly, thank you for the long and detailed reply. BUT, you have some misunderstanding about some things related to PC builds, and Hardware compatibility. Also, some misunderstandings on how some things work. I don't mean to be disrespectful when I say that. So my apologies if it seems like I'm criticising. I'm not.
Ill try and explain in more detail.
So, on the CPU's
Both the AMD 2700x and I7 9700k/I9 9900k are the top performers from each chip maker. You WILL NOT need to replace those CPU's in two years. They will be solid gaming CPU's for quite a long time. You do not have to worry about them. Intel CPU's are typically 10-15% faster than the fastest AMD CPU's. But this might help explain the difference. If you are gaming on Intel chip A, and it goes at 100 fps/hz, and the AMD chip B goes at 90 fps/hz, will you see the difference? The answer is no. The point I'm trying to make is that both CPU's are excellent gaming CPU's and are the envy of most PC owners. Either chip will do you well. Just to be clear: You will not need to replace either CPU in 2 years, and both will give you amazing performance.
On the GPU's
Both of your CPU's will drive any high end card, perfectly well! Would you believe the RTX2060 is a mid-range card
But if you chose the most powerful GPU out there (RTX2080ti), both of the CPU's would work perfectly with it. There would be NO bottleneck at all. It's not worth thinking about. That obviously means no bottleneck with an RTX2060 either
On the SSD
Yes, there are faster SSD's than the 860 Evo. There are newer versions with faster read/write speeds. Evo 970/Pro/Evo Plus. These are faster SSD's but more expensive.
Not only Samsung Evo's. Their are other top level SSD's too! There are lots of choices. But, again, you will not notice the difference between an 860 Evo and a 970 Evo. The only way to tell which is faster is by testing it with software that tells you how fast they are (Benchmarks). In realworld use, you or I or anyone else could tell the difference. They are both ultra quick, so quick we cannot tell the difference with our eye. Only with a benchmark.
On the RAM
The Patriots you linked are nice. The one you quotes is in UK pounds and would costs about 300 dollars or close. 32gbs of ram for a gaming machine is not needed. 16gbs of ram is perfect for a gaming machine. Most games will not use more than 10gbs of system ram when gaming. You do not need 32gbs.
On the Motherboard
Most motherboards actually perform very closely to each other. Even the mid-range ones that cost about $100 are 97% as good as the $200 motherboards. The main difference between the two is the features they offer. The $200 mobo will have much more features and options that the $100 board. But the performance in games will be mostly the same. DOn't be overly concerned about which mobo. Just make sure to choose the right one for whatever CPU you choose.
For an I9 9900k you need a high end motherboard. For Intel they cost a bomb. For 1500 you will not get a system with an I9/Z390/32gb Ram/RTX2060 for anywhere close to that.
However, I'm happy to give another post with two systems for $1500. One will be AMD based, the other Intel. Let me know if you would like me to do that.
With everything I've said, I would still advice you to get a system like the one I've mentioned above in my first posts.
It will do everything you want, and you will not be disappointed. You will not be at a disadvantage from anyone else, and your system will perform well for years to come. The only thing you might need to do, is upgrade your GPU in 2-3 years and that's about it!
Just a final note on monitors. Most monitors go up to 144hz. Even an RTX2080ti and an I9 9900k will not hit 244hz. In some games that combination will not hit 144hz. You should be aiming for a decent 1080p/1440p 144hz monitor at most. Forget about 244hz. There are some old games where ou can hit mad FPS/hz. Like CS:GO where you could be hitting 300FPS easily. But you could also hit 200FPS with the system above.
You really just need to be 100% clear on what you want your system to do and achieve. Sometimes this is game dependant. For example, as I said CS:GO you will hit 300fps. With the same hardware in BF5 you might only be hitting 120fps. The task you want to do is important too.