I would definitely grab that if you have the room for it.
I am not a fan of post '70 B-bodies, but I've seen a handful that really caught my eye (from wild street brawlers to all-original ones). If I may ask, which part of the U.P. of MI did you find this in? (PM me or post here if you don't mind) I know of at least three towns/cities up there that are known for having hidden MoPar treasures tucked behind buildings and under trees (Iron River, Eagle River, & Escanaba). I've met several MoPar guys from those areas who always tell me amazing stories of how they found these rare cars just sitting in peoples' backyards or in wrecking yards (like an FM-3 T/A).