Yeah, I wouldn't do things like glass replacement - even as a shop owner I would call the vendor for that. So far as getting certified for warranty work from WBGO or Newmar, etc. I would think they'd want you to have a bricks & sticks location. Not sure yet.
Pretty fantastic. We're stationary for the winter with the RV in storage (my wife is working at a ski resort and I go skiing every couple days) but we'll definitely be back on the road come spring. Had 3 breakdowns this past year and used a mobile tech for one of them and got towed to small town mechanic for the other two.
How has RV life been for you?