Are you talking like a bumper pull, 5th wheel, truck camper?
Have you ever ridden in one traveling down the highway? I have and I can tell you I wouldn't subject my pups to that no way. And the things are built out of card board and tissue paper, folding like a house of cards in any serious accident.
I've read stories of peopling claiming their dogs just LOVE being in their crates and riding in the garage of their toy haulers and it's my not so humble opinion they're A) deluding themselves to make it "O.K.", B) plain full of crap, C) all the above.
When I take my dogs to the vet they will drag me to get in the door and I know for a fact they hate being there.
I've traveled from Ohio, to Florida, to Maine, to as far west Colorado, pulling a 41' 5th wheel with a CC dually hauling 4 people, a Golden Retriever and a Weimaraner in the cab.
If you care anything about your dogs well being, both mental and physical, you won't force them to ride back in a camper. It's loud, most likely rougher than you think, and not much fun at all.