how much would you offer???

[jcueckert13]

my dad found a 1969 suburban on a back road that he said i should go talk to the guy about. it is a 1969 c20 with barn doors, straight body, minor new mexico rust, origionally had a 350, the grill needs to be replaced. i looked at it earlyer but did not talk with the guy so i am assuming thet the engine is shot (because it looks like it has been sitting for a few years) i dont know what options it has or what trans it has as of yet but would like to get some oppinions. i was thinking of offering him 800 but figured i should ask for advice first.