Prof - Gary can handle all your needs. He was a rising star at Thiel and after resigning in the early New Thiel era he became Bryston's USA sales manager and then worldwide Marantz brand manager for Sound United. When that company became turbulent, he was convinced to pick up the reins as CSS, my first-choice outcome for our beloved brand.
When at Thiel Gary was the out-facing technical service rep / the other half of Rob's repair department. They worked together. Since this past January Rob and Gary have worked together to increase Gary's fluency with hands-on techniques. Rob will also remain on call as needed. No worries. Gary was also Jim's lab assistant and the lead man for the development of the CS2.7 after Jim's death as well as the CS1.7 with its next-generation RadialWave coax and StarPlane woofer. He knows his stuff.
To your question, all Thiel speakers can be serviced in the field. Some mechanics may not be obvious; but once exposed to the solution you will be able to do what's required. Again, no worries.