Hi,
i'm from germany and I have a Comanche, too. It is a 91, 4L 2WD, Pioneer modell. If I buy it, it stands about 6 years because of a transmission brake. So I put it on a trailer, bring it home and start with work. First I found a new transmission, a AX15 with a NP231J transfercase, than two axles from a 95 2.5TD Cherokee with a 3,73:1 gearing.
So at one weekend we but everything in. Welded the axles that it goes to the Manche. Make the complete brakes new and start welding the side because it was rusty.