[Katshot]

There are only 2 ways to pull the motors:
1. seperate from the transaxle through the top.
2. together with the transaxle from the bottom by dropping the cradle.
The torque converter splash shield is a tiny little one at 6:00 position. Remove it and then the (4) converter to flywheel bolts.
There's (4) bellhousing bolts all visible from the top.

 

[Katshot]

Don't have a clue if they are interchangable but that WOULD be the easy way. You could probably get some input from the local junkyard. They have interchange catalogs that will tell you if the cradle, transaxle, etc are interchangable. I would think it's worth a phone call.