I have a fibreglass cj5 body for sale. All looks to be in good nick except the centre of the firewall has been removed to fit a motor. No chassis. In wellington
for anyone interested in this, 4wd Fiberglass would be able to make for the buyer a replacement piece to cover the hole and get it back to standard and it wouldn't cost that much.
phone Ross Bolus (secretary of the BOP club) He'll save you.