A&Ps and non production airplanes, state of Maryland.
The Geezer has met several A&Ps here that did inspections and maintenance on non production aircraft, of a variety of types, including Vareezies. Composites were not their favorites, and generally avoided, as some still avoid Cirrus.
Their customers provided the specs and build drawings, the mechanic became familiar, and became the go to man for that design.
Unlike the detractors here, they had good personal relations with their customers, They ALL required owner assistance, and liability was not an issue.
Some grumbled about how much they had to learn about water cooled non Continental/Lycoming unique features, but very much enjoyed the emergency trips to remote airports that did not have a willing mechanic.
As the fleet size grow's, the number of qualified and willing A&Ps will also grow. Currently, the percentage of A&Ps who will do repairs on your Mustang are decreasing, and less common WW 2 planes practically non existent.
Increasing numbers of composite production planes will result in a growing selection of non destructive test devices to evaluate integrity of the materials used, and generic manuals on techniques to be used.
The future is promising for both the prospective owners and the mechanics who will inspect or repair them.