For Prime members only. Amazon has the AMD Ryzen 7 5700X3D 8-Core 16-Thread Desktop Processor (100-100001503WOF) for $182 with free shipping. Features 8 Cores and 16 processing threads, combined with a massive 100MB of cache, 4.1 GHz Max Boost, Unlocked Memory Overclocking, DDR4 support.

Has excellent Amazon Reviews.

Amazon has the Thermaltake Core P3 ATX Open Frame Tempered Glass Computer Case (Black, CA-1G4-00M1WN-06) for $98 with free shipping. Features Max CPU Cooler Height: 180mm / Max PSU Length: 200mm, Max VGA Length: 280mm (With Reservoir & Radiator) / 450mm (Without Reservoir & Radiator), 3-Way placement: Wall-mount, vertical, or horizontal.

Amazon has the Thermaltake Tower 200 Mini-ITX Computer Case (Black, CA-1X9-00S1WN-00) for $80 with free shipping. Features 2x140mm pre-Installed fans, Supports GPU up to 380mm / up to a 280mm Radiator. Has excellent Amazon Reviews.

Amazon has the Intel Core i7-12700KF 36GHz 12-Core Desktop Processor (BX8071512700KF) for $166 with free shipping. List price: $218. Compatible with Intel 600 series and 700 series chipset-based motherboards. Has excellent Amazon Reviews.

Amazon has the XFX Speedster MERC310 AMD Radeon RX 7900 XT Ultra Gaming Graphics Card (RX-79TMERCU9) for $660 with free shipping. Has excellent Amazon Reviews.