My father had an mint 86 4x4 with a 2.8. It was absolutely gutless, got terrible mpg, and started knocking with about 80k on it. The 2.8 is junk, and you have to do quite a bit of work to swap a 4.0 in it including massaging the firewall.
IMO I would pass and find a 4.0 commanche
2001 amber fire cherokee sport 4x4, 2 in lift, 30x9.50 generals, 174 ion wheels, pretty much stock.