5 bolt ford rims fit the econo trucks. They came with 13 inch rims which were also on the Falcon cars. Even 5 bolt Dodge rims fit. Body parts there are several suppliers of sheet metal replacement panels. But not every panel on our truck. like the endgates. rocker panels under the front door, or floor pans. or the front skin.
So it is best to find a parts van or truck and buy them and salvage what you can use or if you have a place to keep them. Then you can get the parts youy need when you need.
Also guys here can help with parts.
Macs truck repo parts has stuff and there is Dennis Carpenter rubber parts that help supply parts.