The transmissions aren't really unique (that I know of)...as they were used in Troopers and Pilots....among others? The engine is more unique. I can't remember for sure, but the "stroked" 3.5L version of the standard 3.2 might have been an option in Troopers? If the block doesn't seize/grenade from lack of care, there's no reason it shouldn't be able to be rebuilt. To me, the unique parts are the body components. As long as people drive like idiots and crash cars, there WILL be parts.