Value of '71 Duster 340 Basketcase

Sum of the parts is great for your car, as a complete package, not so good, IMHO. The max I'd pay for a car like yours would be 2K.

The parts are definitely worth twice that amount

It's a tough decision to make, however, basket cars don't get top dollar unless they are E-body hemi verts.

Reality on this really sucks sometimes. You could always E-bay it and see where it goes.