Looks like a quality place. Have you spoken with a manager about working on a MH? I bet they would do a fine job. I like that they also do tires as well. Nice to know at least another place to get a tire worked on when on the road.
I will give this a bump to the top for any experience on this board.
Make sure they can do the whole job. I was recommended to a small car oil change shop in Montana that was willing to change my oil, but had to decline because their insurance did not cover fuel filter changes!