Depends on the shop!
While on a several month road trip, I had a clutch replaced at a dealership in Southern California. They had no issue and they put the entire truck/camper on the lift.
My dealership closer to home in Oregon won’t touch anything with a camper in the back.
I’m comfortable leaving it together if the shop says it’s ok. I think they know what their vehicle lifts can and can’t do and what their liability might be if there were an incident.
For tires and bags, they might not even need a vehicle lift, maybe just use jacks and stands or ramps.
Depends on the shop!
Todgru.