The cav motor will work, but you may need to drill and tap a couple holes for the mounts to work. The spots are there to drill, just have to do it.

I replaced a motor in a cav a while back and remember the motors would work from a S10 but you just had to make the holes.

Got mine off ebay for $200 and a 4 hour drive to get it.

Good luck, they are pretty easy to find.