TJ shared this wagon. It looks like it may have some useful parts if nothing else.
https://www.facebook.com/marketplace/item/2383558478505152
“1951 Willys wagon. Set up for SBC. Doesn’t run. Can throw in a 305 SBC, for additions $. I believe most of the parts are there to get it running. I do have a current Montana title. Located in Seeley Lake”