Buying a Used Car

First of all, don't rip on me for posting this here. I am in the market to buy a used Audi A4 and if I posted this in the Audi forum it would take 2 weeks to get a single response telling me that he or she doesn't know the answer. I figure that a lot of people in this forum will know the answer, so here I am.

My budget is $15k and I just found a 1998 A4 in the Santa Clarita (661 area code) for $13k, however it's on a salvage title due to a previous accident that has been repaired. I want to hire a mechanic to inspect the vehicle before I buy it and I was wondering if anybody here knows any good mechanics in this area that I can hire to do this. Also, it doesn't matter that much but I'm curious as to how much it costs.