help with truck value

[griesel72]

Yesterday, i found a 1970 cst 10 truck that is for sale. It has the following options: Big block, th 400, factory tach, ac that works, bucket seats, posi, wood bed and all others that go with a cst. It is supposed to be a 2 owner with the miles showing as original (76000) It started out life as a farm truck by the owner of the chevy dealer in Wichita, then was owned by another guy. It does have some rust but not in the normal places, it has a little in on rocker, but over the back wheel wells and on the bed sides seems to be the only real rust. The underneath is clean. Do you think this truck is worth $2500? I haven't driven it, but the guy tells me it runs and drives good. I'm enclosing on picture.

Thanks
David