Auto body repair & detailing: a-post, chevy c, rare vehicle

Question
i have a 1980 chevy c-10 i am restoring, the a-post between doors and windsheid are rusted thru,i cant find just a-post,any suggestions

Answer
Graft in pillars from a used cab, or get another cab. I don't believe pillars are available aftermarket, and if you can't fabericate them, then you have few choices. This isn't exactly a rare vehicle, I'm sure there is a used cab, or a cab you can scavenge the pillars from somewhere close to you. I don't know what else to tell you. Hopefully, you haven't done too much work to the cab yet, and can find a suitable western replacement. Bill