Strong believer in crate training for everyone's safety and sanity. It's security for the dogs and if they're stressed by their new adventure with the TT, you can bet the chewer will really have at it.
Several years ago at Petit Jean SP in AR, some folks across from us left for the day and left their small dog and a cat alone in the TT. The poor dog freaked ALL DAY and barked and jumped at the windows leaving the blinds totally shredded. Being huge dog-people, we could live with the barking easier than feeling so badly for the pets. It was dark when the owners got home and we didn't hear or see anything, but I'd bet they weren't happy.
Strongly suggest if it's possible to just spend some time for a few evenings with the dogs in the TT and maybe even Camp Driveway it will help. That said, I would definitely take the crate - or both of them - and maybe even ask for vet for a tranquilizer to help with the stress of you being gone.
Good luck with this and hope it is a great weekend for all. Extra tummy rubs to the pups.