Motorhome vs travel trailer for cross country with pets??

I forget the name of the group but there is a female only RV club (or few?) out there. you may want to look into them re the safety aspect.

I also like the large van and rent a MH iideas previously expressed for the trip. But if you have a truck with a large enough cab, you can pull a trailer and let the pets ride in the truck, perhaps in their own crates.