Hi, hopefully you find a good autobody shop that does that type of work. My business and a few other shops do only undercarriage and we been looking for an autobody shop that we can refer that work to. Best of luck
It looks as it should for where it has been living. And a car fax most likely will not show you any information on the frame unless work was done on it by Toyota. The first 2 areas where the rust starts usually is between the Transmission cross member and front suspension usually starts bulging...