I wanted to give myself a challenge, so I decided to build a PC 100% off of parts I bought used from Facebook Marketplace. I ended up buying the cooler and NCME drive new, but otherwise this challenge turned out pretty great!
Unknown Small Black Case
Ryzen 3700x
Thermalright Peerless Assassin
MSI B450m/AC Motherboard
32GB DDR4 3600 Ram
MSI RTX2070 Aero
Crucial P3 1 TB
EVGA 600GT PSU