I live in Los Angeles and can tell you of at least (4) B-Bodies not more than 15 miles from me.
the closest would be a '70 GTX,440 six pac,4 speed super trac pac, EV2.
the guy bought it in '72 and parked it in 1983 for no reason, a friend of mine told me about it in 1988, (he works for a cable company and saw it when he was working on a line) he actually talked to the guy that's how he found out how long he had it. I've been trying to buy it for over 20 years, and the guy won't sell.
the 2nd car is a '70 Super Bee, 383/4 speed,w/console,ramcharger hood,lime green, original owner parked since '85, he will sell it but he's asking way too much.
3rd car is a '68 Charger R/T 440/4 speed, blk on blk owned since 1970. in 1980 the guy had his brother pull the motor to freshen it up, rings/bearings etc. well the brother being a drug addict sold the motor to buy drugs...he said he'd replace it...that was 1980, it's been sitting since.
4th car is a '68 Charger 383 4 barrel/auto. green on green column auto. original owner. the lady is in her 80's and doesn't drive anymore...promised to her grandson who has no interest.
this is just a sample of cars around here in the city, I know of A & E bodies as well but most are not for sale just sitting wasting away, the only good thing is being in Southern California, they're not rusting away.