We just did Alaska in our 2100 with no toad. We never tow, but did rented a car in Fairbanks and Anchorage. We saw a lot of people towing, but mostly bigger rigs. If you are thinking of any ferries, look at additional expense as well--unless you are parking the PC and only taking the car.
If you want any additional information on routes, RV parks, etc., send me a private message. ..... Nicki