Man I can't wait till you actual get this out....
If I can't find the correct mating connector, I will make contact with the 2 pins for reverse, bring out in a pigtail to my harness and gob it up with RTV to keep the elements out.
........................An overhead beam with chains/straps for both the engine and tranny has the potential to keep the pair coaxial while retracting, plus the tranny (when clear) can be lowered to the ground without the issue of jack height underneath. I'm thinking about a beam that can have the tranny end lowered ~5" after the straps are on the drivetrain, two on the engine and two or three on the tranny.
Might try something like this... sits in the fender recesses.Needs a hinge at the far end for when the tranny end is lowered.