Based on https://grabcad.com/library/egpu-case-design-1
Handle (x size) https://www.thingiverse.com/thing:4619895/files

Side bars, front grill and pcb support download from original source.

Max GPU lenght 200mm with horizontal air flow.
Flex-ATX

Materials needed:

• 43x m3 threaded heat insterts
• 43x m3x6 screws
• 4x m3x10 for feets
• 4x m3x15 + nuts for PCB
• 2x m4x12 + nuts and washers
• 8pin 180 degree adapter (optional)

GPU support glue to back grill.

My build:

• MSI GeForce RTX 4060 Ti Ventus 2X
• METALFISH Flex 500W
• ADT-Link UT3G