It's a 1996 Honda Civic, and it's pretty straight-forward to swap in the rear trailing arms and crossmember (or custom) from a CRV. Honda sold a 4WD wagon in Japan, and there are a few folks who have built their own 4WD Civic from CRV pieces.
If I can really reverse the mounting of the MGR it makes installation even easier than I thought. If I can get 50kW (67hp) then it would be worth it. However, I am confused about how much power is really possible from this motor. The table below from some service training describes 50kW output from the rear motor, yet the actual HP contribution the electric motors provide in the total for the vehicle is just 60hp, which is limited by the battery (as shown in the
spec sheet I found).
If the limited power output is because of the battery, can the inverter and voltage doubler handle higher power? Maybe the confusion is from the fact that the Toyota inverter actually has 2 outputs 50kW and 20kW, presumably for front and rear.
I need to keep researching...