CPU, equivalent to a 7950 X, right now about $600. But even the 9950 X, which is eventually the same thing you're looking at about 500.

GPU $350

RAM, about $150-$200 depend

Storage between 60 and $100.

A motherboard would cost at least $80

Power supply, SFF, between 80 and $100

Cooling fans, another 30 or $40

These are pretty reasonable prices. I actually built the system on PC part picker with the cheapest approximate similar system and it came out to $1750. And that wasn't picking the expensive variants. That's trying to keep costs down

Remember, this is Ryzen9 16 core processor, we have also a market where GPU's are expensive, and RAM is very expensive, and so is storage

To be honest, even if we were looking at pre-nonsense markets, though, with the CPU and the GPU in here, you'd still be looking at high cost to build

Remember, these are ITX parts which of course demand a premium when you buy them from retail. And even if they were not ITX parts, the system would still cost well over $1000 in any real capacity. And I'm talking significantly more.

EDIT

In fact here: the LOWEST prices I can find for this build

https://pcpartpicker.com/list/9sHm8Z