Duster vs Demon

Hi Guys - For a while now I've been gathering up parts for my Duster build. So far I have a six cylinder donar car and a 340 Duster that needs quite a bit of body work that I had planned to use along with about 80% of the parts I will need (old and new). I'm just about ready to get started because I'm about 2/3s through my wives VW I promised I would do first. Anyway yesterday an interesting option became available. A friend of mine told me that he has a 71 340 Demon that I may want to look at. So here is my question: I know they're basically the same car, is there any real value difference between the two? Or am I just looking dollars spent on body repair one verses the other. Appearance wise I think I may like the Demon a little better because of the Dart front end and the factory color is hemi orange verses the blue Duster. But other than that I like them both and am somewhat indiffernet.

What are your thoughts?