For transport/hotel set up you'd be better off with a critter keeper or tub. They are easier to carry around and set up and since it's only a day or so, your snake won't notice the difference.

I can't offer any suggestion on shipping the tank. I imagine that, if it is an aquarium and you can't take it with you, the cost of shipping is going to be more than just buying a new/used one when you get to OR. You can always find tanks for about $1/gallon on Craigslist.