I've talked to those fellows at a Bolerama and they certainly have the "modern" equipment in their rigs. They may well work only on production of their rigs however?
Again, I think there is a fellow in Chilliwack who works on RV's (Glen's RV Repair and Service) and (Grandpa's RV Repair)
and the people at Travco in Burnaby are all good resources for advice and suggestions.
Dave Scott 604 553 4946
daveandbonscott@shaw.ca