Just picked up my first MJ, an 89. 4.0, AW4, RWD longbed.
She's a little rough, but runs and drives. For a little bit, anyways. Overheating, had a head gasket done and that didn't fix it, PO thinks it has a cracked block. For $350, I can't complain.
Plans:
4WD swap, HO engine swap...