So this is the prototype a friend has made that holds 8 GPUs, which will work well with the 16x 8 way splitter that is currently under development. This is NOT a final design and there are already a few things I want changed, but it's progress in the right direction. Welded aluminum frame and we're shooting for a selling price of $100 worth of GPUC.

Do you know what risers you will need for GPU in this setup, how long? I think more than 35cm.
Might just be me but how come all these frames never have a way to keep the wires organized? Could be a large sell point..for me an others like me who like there rigs to look more professional than a mad scientist's workshop