Darn! Sure wish I had seen your installation before I started on my hose storage adventure. Yours is very simple and straight forward. Well done.
BTW as a side item, my wife has a sound meter on her phone now, but haven't had a chance to check out the eng. reading on it due to spending to much time on sewer stuff.
Will post a reading at 2000 rpm's in neutral and on the road and see what if any difference may exist.