69Gladiator

I was recently given a 1969 Gladiator J2000 with the short Thriftside box. Been doing some research, seems most new body parts (except for floor pans, rockers, and fibre glass front fenders) are none existent. Does anyone know if the Wagoneer front clip and doors will fit on my '69, and how close is the box from older *****'s stepsides? They appear to very very similar in pic's I've come across. Any help would be greatly appreciated.