temporary broadband and cell phone service in the west

This will sound strange, but have you looked at what Alaska Communications has to offer? A friend of mine, in Alaska, uses them and he tells me he has no problem with service in Alaska, Canada and all over the Lower 48. I checked their plans and prices and they seem to be a better deal than what you can find in the Lower 48! Plus they have no-contract plans and options for bringing your own equipment. Not sure if they'll set up an account for anyone without an Alaska address, but it's worth trying.