How much should i sale my truck for?

I have a 1979 Chevy C10 Pick up it has the original 15' rally sport wheels, a brand new windsheild, spare , tow package, brand new front brakes including calipers,roaters and everything else, a campershell, the back end brakes are 2 years old, theres the usual rust spots, and the bodies sinking on the left side a little bit, it has a v8 engine, its a great work truck, i was thinking 1200 or 1000