Finally getting to it!!! 1970 Duster 340

I have come to the conclusion that my body man has been screwing me over for the past 26 months. I talked to a local Mopar restoration shop in my town, showed them pictures of my car after sandblasting and current status with the work that has been done. His recommendation was "get your car out of there now!" I have been grossly overcharged and the car is not even close to paint or primer.
The current shop has bled me dry financially and I feel used, cheated and criminalized. At this point, I need to determine my best course of action. I need to get my car out of the shop. A law official that I know suggested small claims court while another ex-Sheriff felt that my case would be difficult to prove.
I just don't understand how someone can treat another human being/ car enthusiast this way. Unfortunately, this scenario seems to be all to prevalent in the auto restoration world.