Patch Panel parts source?

[FrankHoy]

Does anyone know who carries these patch panels?:

lower rear cab center (cab corners do not cover this center section)

Rear floor panels (THis would be for the floor section against the back wall. No patch panels I have found cover the center rear of cab floor, only complete floors)

Tailgate lower section cap/replacement patch panel (this looks like a U and replaces the lower 6" to 9" of the tailgate where they typically rust out. I know I have seen these offered before but can not find them at any vendor.)

Thanks for any help.