I'm currently still printing parts for this but was able to test fit my ezdiy-fab pci-e 4.0 straight riser cable but had an issue. Has to trim the bottom of the board/socket mount because of not enough clearance on the bottom. It will proble be a problem for any pci-4 rise cable since they all have a thick plastic guard at the point board meets ribbon cable. (edited)

Just happen to have the exact same case lol. Havent chosen a gpu but i will print it when i do.