1971 C/20 Cheyenne ?'s

[71400lb]

I'm looking at buying a 1971 C/20 Cheyenne Long Bed two wheel drive NO RUST/NO BOND...can somebody look at the description and see if something doesn't make sense, or jumps out at ya?
What should I look for/ask about with this truck?
Does the description sound normal, I mean did they make a 400 4 bolt main, did they make an Eaton with 3.73's?

here are the details;
Engine; a rebuilt 1972 400 SBC 4 bolt Main with "towing" cam 4 bbl Quadrajet
Trans: a rebuilt Turbo 400 3 spd auto/column
*engine/trans rebuilt 25K miles ago
Rear:Eaton 10 bolt with 3.73's(not sure open or no slip)
powers steering, disc brakes w/booster/towing package/trailer wire harness/4 core radiator/oil cooler/Air Conditioning/

restored from ground up over past ten years ago.
see pics attached...

Any info appreciated,
Thanks,
Rick