If you find a good RV service shop, a 'bit of a drive' will be nothing. But if you find a worthless RV shop right next to your house, would you use it?
You are probably better off looking for/finding a mobile tech to get work done at your home.
A lot of times asking at the office of an RV park will come up with a name...they usually have techs in the area that work the park(s) and have a good reputation--the park certainly doesn't want bad repair work done on their advice.