Philly area autobody for salvaged FR-S

[Fang]

Hi there, I have my eye on a salvaged FR-S with front damage and two front air bags blown(steering wheel and passenger dash). Does anyone know of a reputable auto body shop who has fair rates in the philadelphia/suburb area? My brother knows of a guy who does side work on rebuilding salvage vehicles, who used to do it full time, and I was planning on using him, but the biggest worry I have is making sure the airbags will be functioning correctly when they are replaced. I've heard all you have to do is make sure the light isn't on, is there anything I can do to make sure the airbags and sensors were installed correctly and work when they need to?

Thanks in advance.