What is this thing worth

Sold my 69 cuda, and looking now at a 70 Duster, but not too sure of value. I have found a 70 Duster with 318. Bucket seats, console, ps, get this, pdb, originally A/C car! Little car is pretty much rust free, and straight with a dent or two here and there. Originally red with white interior, and all glass is good.
Car does not run at the moment. I am unsure what to offer the guy, but he started at $3K and said to make an offer.
Car is definitely a project, but is a pretty unusually loaded out little car.
Help in determing the value would be appreciated!