If it was absolutely spotless, and everything is original and intact, then yeah.. I would pay 3.7k... (obviously with a stuffed motor).
But if it's got sagging and even gaps in the panels, If it has got some torn interior and a cracked dash, and if it's overall a bit average, probably about 1.5k
If it's got a bit of surface rust, some signs of wear, maybe some previous accident repair, but overall in good nick..
about 2.7k.