How to buy refurbished salvaged cars at a deep discount

Hello to all. I am a new member with a need to buy salvage Mercedes class E 350 E 400 or E550 year 2010 up to 2014. I am a cash buyer. I would like to deal with a body shop, mechanic, salvage dealer that is up front about the history of the car so that I can determine if I want that car at that refurbished deep discount price. I do not want to pay full price for a damage car. What type of dealers, broker, and body shops should I be talking to? So far I have only found scams.Can anyone post how I can find this in may state ,Florida, or just how to? Any help is welcomed.