I did contact Mark at Macy's. Seems like they have a lot of experience with the engine, which I feel is important. I don't know that I would leave it with a shop that has not seen one before. I'm glad to hear from someone that has dealt with them.
We are in Greensboro...so not too far, but it feels like a million miles away in a Morgan..
Look up Macy's garage (Dayton OH). I had them rebuild my Tr3 engine and they did a wonderful job with a quick turnaround. They are probably the most reputable TR shop out there. I also only have good things to say about Morgan Spares. The best source for the Lawrence tune parts in particular is probably Morgan Spares/Larry Eckler.
What part of the US of A are you located in?
Read
Raleigh, NC