engine swap question
 

I found an 85 pickup 22REC with a main bearing that is going out. I also found a 83 22R that runs good but the body is in bad shape. How hard is it to swap the 22R from the 83 into the 22REC 85? The 85 is an xtra cab and I need the extra room. I can't wait to have a trail rig again. The goal for this truck will be ocasional driving to work and hunting camp and also 4 wheeling trips. Plan on 3 - 4" of lift, 33's and a locker in the rear. Anyone with any other suggestions would be appreciated because I am open to suggestions on the best way to lift , lockers, and what to do about the engine. Thanks, Andrew