auto transaxles

I am trying to figure out what to put my MK1 frame on so I can still roll it around. I see some used the JEGS Auto Body Restoration Cart, but I do not see any input on how it works. Anyone have any comments or other recommendations on what works well?

Would there be any interest in a full transmission build or the parts to convert an Audi awd 8hp auto trans to a fed only for mid engine cars like ours? I have a company who is well known here willing to build the entire trans up to 1500-1800 hp or the parts to convert yourself which is...