Insurance!

I would be very careful about this. When looking for insurance I talked to a number of insurance companies about the camper and several told me that it would be covered as cargo. When I asked them if they would cover me if I loaded a $50,000 grand piano in the truck and crashed it there was silence, a check with the supervisor, and then the said it would not be covered.

There are insurance companies that know exactly what a truck camper is and will write a separate policy. Fine one of those companies.