Motorhome vs travel trailer for cross country with pets??

FYI, a motorhome going down the road won't be "conditioned space". You can run the AC unit in the drivers cabin area, but that AC won't be cooling down the rest of the motorhome... especially in the summer. You would have to run a generator while you are going down the road and turn on the overhead AC unit to keep it cooler, the same as you would a travel trailer.