As I said, there are some different issues that wheel builders who have no experience with may not implement optimally. I've heard about poorly chosen solutions from bike shops, you can take your chances with it if you like. You may be training them with their first hubmotor build, do you want to be doing that? Putting a 10 or 20 pound motor in a wheel isn't something that the standard bikeshop wheel builder necessarily has any experience with. It's up to you to decide. You'll likely pay for their mistakes. I'd choose a shop with experience in building actual ebike hubmotor wheels, myself. Barring that I'd find out if your favorite non-e bike shop has the experience (and some do). Some shops are already anti-ebike and won't work very hard to make you happy. One shop I heard about (fairly local here) took an ebike job and had so much trouble they won't work on another hubmotor. I'm not sure what all the problems are, but many choices in spokes and patterns have to be adjusted for hubmotors. I know on one of my wheels special coned washers had to be fabricated to adjust for the size of spokes that the wheel required which were on the small side for the motor. This is not normal, but was required in this case. I'm glad I had an ebike aware wheel builder for that build. It has thousands of miles with zero issues or readjustment required. So many hubmotor wheels require frequent retuning because incorrect choices were made in the spokes, pattern or adjustments. I'd rather do it once and done. But you may do whatever you prefer. The listed shops are places I've personally had good results from, they are not the only shops around, but I've not tested others.