I guess junkyard A-bodies are all gone now

What 72BluNblu said. True. The numbers are simply against us. It is a fact that A-bodies are scarce. I usually only attend one local Mopar show each year and every year its the same - maybe 15-20 of the Mopars are A-bodies. Lots of B and E bodies.
The bean counters are winning. It costs real money to set up presses, dies, molds, do testing, etc. If the numbers don't add up, its not getting built. I too, ***** and moan about the price of parts and also have my own "stash", but that is the nature of the beast we live with. Whenever I catch myself in self pity mode I just remind myself of a couple of things. If it were easy, everyone would be doing it, and 2) I give thanks to the Mopar gods that allow places like AMD, PG Classics, Tony D, and all the others that actually hang it out there and re-pop the parts we can make use of. I think we are actually quite fortunate that there are as many vendors as there are. Thank you, from the bottom of my wallet (I mean heart). My A-bodies are the better for them.
To support the OP, there are no A-body parts cars in wrecking yards around here anymore either.They pop up occasionally for sale, but they always seem to be made of unobtainium, or the "easy fix" is about 500 hours of bodywork!