The body with fenders and hood appears to be $375. There are other parts available also. You can get everything for $650.
https://swmi.craigslist.org/pts/d/mc-bain-jeep-cj3b-body/6934219020.html
“Have body with fenders and two hoods. Also available M38 frame with front and rear axles. Separately have transmission and transfer case. Also rear seat and front seats with cushions. Nice tailgate and CJ grille. All for this included for $650.00”