We are planning a trip in the middle of august until mid- september. By the time we get there we will need a 6k maintenance and new tires. For maintenance we will probably count on Trails End BMW to doo it but for tires what do you think ????. Trails End is asking a pretty hefty price (almost double of what we pay on the east coast-internet orders). I know that the shipping is the culpirt here and sacrifices have to be made but I dont want a boat ride. The 6 k milles should we do-it before or after Dalton Hwy????. We will change to knobby before Dalton Hwy as a precaution. We would appreciate any sugestions that you can give us.