Good to see you here Alan, missed your posting on Moparts (I'm mastershake340 there)!
I'll be interested in seeing your '71 when it's done, a friend of mine in the area here restored a '71 V code real similar to yours, white top, black interior, white stripes. His was a Mr Norms car, shaker, elastomaric bumpers, 4 gear. He had to sell it before it was a 100% finished, not sure what he got for it (I don't want to seem too nosy by asking), but I bet he got close to 100K for it.
I still have my GK6 one, hoping I don't have to sell it to finance getting my Mr Norms T/A project back in gear, but in this market I'd be surprised if I'd get half what that AZ classics place is asking for theirs if I do. Hard to say for sure though, so few '71 V code Challengers out there in the market it's an educated guess what they are worth!