The only independent I’ve heard of period is Church Stretton motorcycles and I’m not even sure if that involves K’s,when my K lunched it’s gearbox my two mates who operate out of a garden shed put a 1300 box in for me,and I supply the GS911 when needed but when it comes to having to shim the motor etc, it’s only the official dealers who are going to get away with the telephone numbers bill doing it.