As another south coast KTM owner albeit I do most of my own servicing, that is a pain in the arse as I always found them to be very reasonable to deal with in that they/KTM UK squared me away with GBP 1.5-2k worth of parts and labour for free to resolve a minor issue on a bike out of warranty. My albeit limited 1st and 3rd party experience of Trevor Pope is that their focus is EXC/SX bikes and they will deal with 690’s at a push but are not set up or really interested in anything travel/adventure based. That said they can supply any part of any KTM bike available via the microfiche.
In the past I found Crescent useful for software updates and a valve service and I’d have thought like others have said, that with a push to sell new bikes especially with the new 790 launch, it would make sense to have a robust dealer network. Will be interesting if/where another one appears on the south coast.