Anything is possible. Manned space flight from your backyard is possible. Possible doesn't mean anything. This isn't worth your money or time.

If you think there are only 10 or so parts that are different then you need to be prepared to need 30 or 40 different parts and about 100x's more work than you thought. It sounds like a good way towards a 4000 lb. piece of lawn art.

If you had a totalled 4x4 Xterra you could swap stuff over on then that would be the only way I would even think of attempting that.

I think you should just get some lockers for the 4x2 and see if you need more.