Find an RV Tech that has done a lot of them. No substitute for experience!!!! Talk to other RV'ers in your area, it may wind up being a mobile tech. I used a mobile tech when I had my car and motorhome set up, which included installing a braking system too. He never missed a beat, got everything done when he said he would, damaged nothing, and in twelve years have never had a problem with any of it.
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