This might not be the right forum - please advise if so.
I tow a cargo trailer to shows and events, so not a camper but the issue is the same.
A month ago while in Dallas my van was stolen from a hotel parking lot. My trailer was detached and wasn't taken - Thank God. This left me 800 miles from home with no way to get the trailer and myself back home. I ended up having to get a U-Haul truck, which cost +- $850 for the one way rental.
My insurance provider - State Farm - pays $25/day up to $750 for an interim vehicle, so if you need a Hyundai Sonata you're good to go. If you need something that can tow you're not. I received $137.50 reimbursement for the 5.5 day rental. Yay.
I was talking about it with my insurance agent trying to find out what coverage I should have had. Apparently nothing they offer. There's an upgrade replacement vehicle policy but it,too, is per day. So if you don't need an inexpensive sedan for 30 days but you do need a relatively expensive rental for 10 or 15 during the period between theft and Total Loss Settlement you still lose. He said my situation was unique. I pointed out that had I been pulling a camper it would be the same.
So....what coverage do you have that would address this situation without having to eat the over 700 unreimbursed dollars that I had to spend to get home.