Welcome! It's a real problem, this car is just too rare. If you don't mind trying a dealership again, I can say good things about Coastal Ford Burnaby service. I ended up there after trying a couple of other places where I didn't have positive experience for one reason or another. They worked through a few nagging issues that bothered me for a long time and in general were willing to listen to my own diagnosis, which, as far as dealerships go, is pretty rare to me. They readily admit they, too, don't have much experience with the car, but I found them to be the best option for now (and they now have worked on at least one already, haha).