It's funny, this week I was in a Hampton Inn that had the same modem I do for DSL and thought, gee, if it ever goes dead, I may just swap it out in a hotel room.
I would get one off e-bay if one is available. There probably isn't any set up at all for DSL, just connect it and go. My 5260 is available all over the internet for under $10, I seriously doubt the phone company would sell it to me for that little.