Towing an H3 to Moab

[Bully13]

The wif and I are thinking about possibly renting a trailer and using our H2 to haul our H3 to Moab in August. This way we can trade off driving as it is a long haul from Sacramento.

So my question is, do you guys think this is a good idea? I've read the threads on Hauling with the H2 and it seems like it would do fine, but I'm just kinda worried about the hills and the fact that it is a ways a way.

Also, is this even worth doing or should we just rough it and take both vehicles.