Need opinions on this budget pc build.

[ArmyFrame]

Need opinions on this budget pc build.
I have gathered a build in mind that I think I can get at a reasonably cheap price, and I'm very limited in getting new parts or changing specs as I live in a third world country, so I want to know if this is good enough to run most games at 1080p High.

Here's what I gathered so far that I think I can buy used

Motherboard: Prime B450 Kill (Will get this for really cheap)

CPU: Ryzen 5 5600x (Can get this used at pretty much new condition for slightly cheaper than new)

GPU: AMD RX 6700 XT Graphics Card (Most expensive part and haven't figured it out where to get it from yet but I think it would be future proof enough for 1080p games)

I have a friend selling an RX 6600 for half the price, but I might as well go for something future proof.

Case and PW combo: Xigmatek master x (This has a 600W PSU and is the cheapest decent case I can get, but will 600W be enough for the combo above?)

Ram: Any DDR4 3200mhz that I can get for cheap used or relatively cheap new (Is it worth it buying used ram for it being around 30% Cheaper?)

Storage: Will not worry about it for now as I already have an ssd for windows and hard drives to store stuff, but will definitely buy an NVME later on

Please keep in mind I'm about to buy the CPU and motherboard tomorrow morning as I think I got a good deal for them, do you think all the parts will go together and this will be future proof or is there anything that I need to worry about, any help is much appreciated.

 

[D10S]

Good build. What games do you play though ? If its something light, 6600 will do, if more heavy, get a 6700xt. And remember to use 1440p res via VSR, then fsr2 balanced to recoup the performance. Will run same or raster but look better than native 1080p. This trick works best with dlss though, since at lower resolutions and presets its miles ahead of current fsr, same as dldsr is better than vsr