I feel your pain. My truck is just a rusty beater, but I still need mirrors. Can't find anything. Nothing in the above for a '76 D-200. Lately, I've been trying to find some 68 car mirrors and the only responses I get is N.O.S. Don't need to spend that kind of money for my beater. Let us know if you find something reasonable.
I have mechanical Aptitude. I can screw up anything.