PC build help with reddit post

I am planning on building a PC to run retro game emulators, PS2/GameCube and older. I came up with a build, linked below. is there any spot in this build that I can downgrade parts to make it cheaper and still run these emulators and games without issue? I also included my reddit post incase yall wanted to comment there.
thank you for all the help.

https://pcpartpicker.com/list/rfKPh3

https://www.reddit.com/r/buildapc/comments/1ahdqbq/need_help_with_a_pc_build/?utm_source=share&utm_medium=web2x&context=3