Don Marvel at MarvelSpeed in Rowlett (972-475-644, just a couple mile from Rotary Performance. RP was not customer friendly when I deal with them last time.
Don was the master mechanice at Town North until several months. He is the best rotary engine mechanic around here. Actually he was the one who taught the guy at RP years ago on rotary engine.
No affiliation here, just that I take all my cars to him! He is a nice, honest guy and does good work. However, he may be booked through the month. If you have emergency work need to be done, he can work with you on that. You can bring your parts to him too.