Is this relatively doable? I'm planning ahead for a possible trip this June, wanting to make it up there for the Yukon Qwest canoe & kayak race (Whitehorse to Dawson City) and thought it would be awesome to ride the bike up there and back to make for complete "adventure" trip. I can only swing 2 weeks of vacation, though, so would have to make it up there in about 4 days but would have 5 or 6 to get back. I made a rough estimate of maybe 2500 miles each way, so that would seem feasable. Any thoughts?