Sounds like a lot of work! I have an 86 Comanche 4x4 with the 2.8 V6 and Chrysler automatic transmission. I went with re manufacturing my 2.8. I had it done by a local machine shop that builds racing engines (winners). This guy uses the same craftsmanship for every engine racing or not.
I have been a mechanic most of my life,and I could not believe it! I watched him put mine together and he is meticulous!
Bored the block .020, turned the crank .010, threw out all other internal parts including valves, seats, guides, and springs. Everything was replaced with name brand new parts.
I replaced the torque converter and rebuilt the transmission. New brakes all around, new bushings in the front end and new shocks. The only thing left to do mechanically is the rear axle and my MJ should last a few years without major work to be done.
I would not have considered all of this work except this truck has absolutely NO rust anywhere, the upholstery is original and not a rip or tear anywhere, and the rear springs still have factory paint on them.
There are a few minor dents where objects were thrown at it by hurricane Katrina. Other than that paint is in good shape too.
Oh yes, I found a new (not rebuilt) carburetor on ebay for $200.00 and I painted my fan! HaHa!