I just bought a numbers matching 70 R/T Chally for $30k.
It is in very similar condition to the 2 listed here (with the exception of some slight rust around the real wheel arches), and everything else is solid as. Most things were rebuilt or replaced with new less than 10 years ago, including a respray and engine rebuild.
Whilst both of these look great, given the current market and the prices I've seen over the past 3-4 months looking for mine, I'd say they're at least $5k over-priced. But as mentioned, if it's something you can jump in and drive home, and not need to spend a cent on mechanical or body issues to get it up to scratch, then the only person that can tell if it is over-priced is you.
Don't forget the 'Cuda in the OP is from a dealer, and they're a lot harder to move on price.