hey i was talking to my friend that has a 71 510 and i want to buy it from him it has a 300zx V6 i believe from an late 80's 300zx and i was wonduring how much i should offer him he says he has 5500 into it but wants 6000 what should i tell him

if it is really clean and has no rust, $6000 isnt a bad price at all