Considering an alterante route to get to Whitehorse. Would be a pretty drive, but I'm not sure how hard it would be on my camper.
Day 1
Palmer to Tok 276 miles, 5.5 hours
Tok to AK border crossing 90 miles, 2 hours
Border to Beaver Creek (Campgrounds) 20 miles, .5 hours
Alternate: Tok to Dawson City 185 miles 7 hours (gravel)
Day 2
Beaver Creek to Haines Junction 180 miles 4 hours
Haines Junction to Whitehorse 96 miles, 2 hours
Alternate: Dawson to Crooked Creek: 111 miles, 3.5 hours (mostly paved)
Crooked Creek to Whitehorse: 220 miles, 4.5 hours