1970 c30 stake bed dually questions

[motornutz]

i took a peek at a 1970 1 ton dually stake bed the other day. it has a 350 with a manual 4spd. lots of new patch panels in (cab corners, rockers etc) it has some filler in door corners. anyways he wants 1200 for it. it has newer paint and looks and drives decent. tires are fine too. my questions are:

1) how much does this truck weigh?
2) what gear ratios comae in these dually rear ends?
3) does this sound too cheap to be true?
4) any problem spots to look for on these 1 tons?
5) it has a pintle hitch, and i want to find a standard hitch. will this rig with the standard hitch pull a car hauler with a 5500 pound tractor on it well?

sorry for the rambling, just felt it was best to hear from the experts on this one.....thanks