Jack,
If you haven't yet, you should read the Tech Tip this thread is about.
Do some checking around on Hemmings, Craigs List, Facebook Market place ... any classified site you can find to see what the 3804 trucks (Advance Design 1-ton pickup) are going for in an original, unrestored but good condition. Then add a slight premium for the dump mechanism.
That's a very cool survivor. And should be fairly priced as such. What that price is ... depends on a lot of variables, starting with location.
Also, if needing to get best money out of it, consider using a professional appraiser to valuate it.
Gorgeous truck, though. And the bed hoist makes it even cooler.
John
