I heard that some RV modification shops are also Victron agents? Do you know which stores offer both modifications and product sales? Can you recommend something?
Just for the first glimpse: go to https://www.victronenergy.com/where-to-buy , enter Your location and look for "installers". There also is a bit of pictograms at every company name explaining their field of work.
Hope someone with first hand experience will give better guidance!