The seller also has a CJ-5 for sale for $6000 or both for $10,000. Note that the 3B has the cowl side vent, suggesting the body is later than 53.
https://www.facebook.com/marketplace/item/439454708536070
“69 CJ5 and 53 CJ3B Both run, both need battery but will start with jump start. Asking $6000 a piece or 10,000 for both. Need both gone do to health reasons. Have titles in hand”