I always liked the 300TD wagons. I sold a nice one on ebay last summer. The buyer came all the way from Detroit to pick it up. He said he has aout 30 of them.
A few years ago the state of Maine outlawed mounting cars on a 4x4 frame. There were a lot of them around and most were poorly done by amatuer builders. I have seen a few old trucks on 4x4 frames lately but they have street rod plates on them. Street rods aren't required to have an inspection sticker but there's a lot of other restricions on street rod plates.
AL