[Christ]

You'll end up having to mount the e-motor about the same as you would a divorce mount xfer case, which involves a 2 piece driveshaft. In your case, you'd be using the e-motor as a carrier bearing between the two pieces of the driveshaft, with the motor installed directly to the frame, and the second section of drive shaft having universal joints and a steeper dive angle from the last output to the pinion yoke than it normally would in OEM configuration.

If I were doing this project, I'd probably get the output shafts from a VW transaxle, for the flanges, then get the CV joints that match them. Put the flanges on each shaft of the motor, then put the CV joints on the ends of the 2 driveshafts that mount up to each side of the motor, then mount the motor to the frame using a solid mount rail, something like a transmission cross member.