When I go up to that country, I stay at the TLC Inn on north 7th in Bozeman. Looks kinda shady from the outside, since it sits between a couple chain hotels, but it is clean, comfortable, fairly quiet, with fridge and micro in each room, and they don't mind you getting up at 0 dark 30 to fish. And a week of it will set you back between 3 and 400 for two, depending on season.

I go up that way around the first of April and the end of October, to avoid most of the crowds, but I don't fish inside the park at that time (although I have on occasion). I never bother with the toons but there are places they would come in handy. I would wander around and hit what the reports said was fishing well, but there are so many choices it is hard to recommend any.