Yeah, get the full estimate from some other shop that is trying to rip you off. Lets say they think it will be $700. Then get the estimate from your buddy's shop and he tells you $500. Give the $700 estimate your insurance company and they'll hand back $200 (700-deductable). Subtract $200 from $500 and you pay $300 because you went with your buddy...who the insurance company doesn't know about.