I got / have several A-body from swap meets. Yes the stands differ based upon door skin profile, but most of the stands can be “massaged” to fit your application with careful use of a file/body grinder, etc. The mirror heads all appear to be the same and interchange...remote control or manual. I have paid $5-25 for them at swap meets/EBay, etc. My best purchase was a like new pair off a A-body Buick with the drivers side being a remote. Good luck and advise if you have questions about mirror glass.