I also have a small studio. For equipment that could possibly need service, I have bought them locally. I looked at specialty fitness stores but also places like Sears. Even though my equipment gets more mileage than regular home use, it’s not near the usage in commercial gyms. Thus I purchased cardio equipment on the high end of the home market and, as a result, I never had to call for service.
I also have a cable cross which I bought years ago from Paramount. If I had to do it again, I would look around locally. You have to watch out for those if you have height restrictions because these arms can swing up very high. This is another piece where service is not a concern. Once it is in place, there is little that can break
Wish you good luck.