I put this itinerary and trip together myself. I'd say I spent an average of $100 per night on hotels, and I rented a car for the week for ~$200. I think the ferry trip, including car accomodation, was around $200 as well. I can't remember the cost of the Kenai Fjords tour in Seward, but most everything else we did was free. For meals it will all depend on what you choose to do, but generally we found food to be noticeably more expensive than comparable meals at home, but not horribly so. Personally I hate organized tours, and I think this itinerary gives you a better taste of Alaska than a cruise will.