Whats a 70 BB Charger and Road Runner worth?

I know, its A bodies only...thats what I am buying but, guess whats sitting next to it?
I am purchasing a very nice rust free 67 GT w/factory disk, /6, AT console car, etc for an amazing deal. When I was getting a few parts together with owner, who stored interior and trim in shop, I peeked under tarp and he said" I have a 70 Charger Factory big block AT and a 70 Road Runner 383 4 speed car if you know anybody that is into mopars".

I know, pics, pics, pics...I will try to get some when he moves cars around to get all parts together but for now, just give me a general range as the only B bodys I see are $10K for rusted shell or $25K for clone but I am not up on my B's. Owned several but thhat was in late 80's.

1970 Charger BB AT rallys. Complete with almost no rust, minor pass floor pin holes. No tach, console or hood scoops. It is RB but not sure which. Body is pretty clean, minor dings, bumpers are good, rear is 7. Couldnt get under rear to see diff.

1970 Road Runner 383 4 speed car. not #'s engine but has A-833. Buckets missing, wrong bench but everything else is there and nice. has hood badges/grills but not scoop. Ugly wheels, paint and interior are toast but surprisingly rust free.

They need paint, interior and I dont know if they run. I think going by prices I have seen they are worth(in currrent market) $10K ea but maybe not. B bodies here are big bucks as Graveyard guys are 100 miles north ans swooped up lots locally. The seller is thinking 80's prices based on what I paid for 67 Dart GT. Opinions or price range appreciated, specially if you have bought/sold recently (2 years).

I will post pics butt might just send the roll back before he comes to his senses.