Look here
http://www.mendeolatransaxles.com/pdf/S4S5_Specs.pdf Tip to bell is 31 3/4". The G50/52 sitting in my garage is 27/28" plus the shift shaft. I would venture to guess that with the Cable shift off the back ala Rick Merz or Lynn Larson the overall length will be the same. The Mendeola has a fore and aft motion sequential shifter on the side of the case so even if the trans tip is at the bodywork you won't have to look at a cable shift which adds to the G50 length anyway. It will be a damn tight fit for the Mark I and II but easy fit for RCR's P4, T70, MKIV as they have more room in the back.