My friend owns,
http://scoutpluss.com/ He and I have talked about making fiberglass fenders in one of his shops. I would supply my best fenders, grill and tailgate for making the molds. I suppose cab corners could be made too. It may be best to contact Rod, the owner of Scout Pluss and show interest in these parts. I do not know, but I have to think a fiberglass fender could be retailed for less than those in the CL advert.
I suggested fiberglass front floor sections would be a welcome part, as many of the originals are rusted.
I have been making ABS textured plastic door panels and headliners. A person with moderate skills could make their own ABS panels. I buy my ABS at SABIC POLYMER SHAPES. This company has locations in many cities across North America.
https://www.polymershapes.com/