Power to the wee
I own a Wee, I live in Alaska, I've ridden the Wee to Cancun Mexico, I've been on the Alcan 20+ times, I own a KTM 950adv and I hate the Wee. As much as I dislike the Wee as a daily rider/commuter/pleasure bike it is a sold machine. In the hand of the right person it can keep up with and pass 990 riders. It is a great bike. It will take more effort, more time and more attention to the road than a GS rider will have to put in but at the end of the day you will sleep under the same stars as anyone else on the road.
Be careful and know yours and the bikes limit.
Denali National Park