3 or 4 day class II hike and float?

Any ideas? I’ve got some friends coming up from the lower 48, and they’d like to spend 3 or 4 days on a trip, but one of them isn’t comfortable doing more than Class II in a packraft.

Cantwell creek is an easy and scenic float. Hike out to the headwaters from the town of Cantwell, spend a day or 2 hiking mountain ridges out that way then float back to town.