Part list from AliExpress, BestBuy, Amazon, and Newegg (prices as of Feb 2024):
Case ZS-A4S ITX case all machined aluminum SFF case from Superbuy
6.2L Ultra Compact Design L:276mm x W:114mm x H:197mm Fits full size GPU Up to 272 x 130 x 42mm. Supports FLEX 1U PSU and Up to 4 x 2.5" SATA drive 2 x 92m (with shipping $169)
MSI GeForce RTX4070 Super 12G Ventus 2x OC GPU card ($599)
Gigabyte B650I Aorus Ultra AM5 B650 SATA 6Gb/s Mini ITX Motherboard. ($249)
AMD Ryzen 9 7950X3D 16-Core, 32-Thread Desktop Processor ($620)
CROSAIR Vengeance DDR5 RAM (2x32) 6400MHz CL32 Intel XMP compatible ($219)
Zopsc PCIE 4.0 Riser Cable PCIE 4.0x16 - Double sided reverse 180 deg. ($26)
Crucial T700 4TB PCIe Gen 5.0 NVME M.2 SSD ($450)
Modular Silver Flex ITX small 1U silent power supply 700watts. ($89)
AM5 CPU cooler from ID-Cooling IS-55 ARGB with 5 heat pipes 120mm x 120mm x 57mm
Twin Top Exhaust fans 9015 ultrathin Black - ARGB ($6.75)