Transporting your case with such a big graphics card may be dangerous. With that part, you can safely retain it. Also, without it it likely won't stay straight:
Instructions
ThorZoneMjolnir_RiserCableStandoffRaisers.3mf
: Riser Cables
As a general rule, you should protect your riser cable with some tape where it is bent and touches the sharp edged case/mainboard (e.g. cotton tape, Tesa 51608):
The riser cable I used is a “Linkup (AVA5) ITX Dual Reverse Socket (v3)” with 18 cm. It fits and offers PCIe 5.0, but I think 17.5 cm would be better, since it is a little bit longer than the original cable. 17 cm may be too short, but I didn't find this length.
Crimping of the PCIe cables
You likely want to shorten your PCIe cables from your modular PSU. I always use Seasonic, at least for this PSU beware: Cut the cable from the PCIe side, not from the PSU side (= leave the plug for the PSU side on). The PSU side has daisy chained terminals (two wires into one terminal, see “8P-5”), it is awful to crimp them:
Warning
The graphics card will fit, but you will likely scratch it a little bit once you put the frame into the outer shell of the Thor Zone Mjolnir.
Other
I used PETG-CF filament.
The author marked this model as their own original creation.