Questions before i buy a 1971 C10

[jkwidener]

I have the chance to trade for a 1971 Chevrolet C10 custom with the original 350 and automatic transmission. Options listed on the glove box door is as follows, custom trim package, rear step bumper, oil guage,amp guage, chrome front bumper. the lower parts of both doors are rusted through, it needs a drivers floor pan, bedsides are good, bed floor needs patches installed and both front inner fenders need some spots replaced. What would this truck be worth in its current state? Here is a small image of the truck. Sorry about picture quality, but its the only pic i have of it.