I have had my 67 SL worked on for years by Jose Gueverra, owner of Metropolitan Motorcars. I don't know if he does inspections as such but he certainly knows the cars. 5915 Peeler St, Dallas, TX 75235, (214) 350-6787. Will Samples, of S&S Imports near White Rock, is a renowned expert, author of quite a lot in the technical manual on this website, if I recall. Again, I don't know if he does inspections. 3303 Wendy Ln, Dallas, TX 75214, (214) 826-5977. Both are wonderful guys and would, I imagine, be able to refer you to someone if they weren't willing to do it themselves.