It really depends on the variation of terrain. Sleds are great if its going to be fairly flat and open. Tight trees and steep hills play hell with a sled and you end up fighting with it too much. If you are going to pack make sure it's a close fitting internal frame pack with more than 5,000 cube capacity. I still ski with my Dana Design Terra frame from my 91 AT hike.
Call your local EMS store and ask their opinions and you'll hear plenty of choices.
Good luck!