A few thoughts
First, where did you get those forks? They look a little spindley. And can you provide a parts list (for our humor)? With that new geometry in play, what does that do to the handling? Oh wait, considering what you usually ride it must handle quite nice eh?
Second, I have some acquaintences who made the same trip (and they filmed it!) but lamented that they left too early and found the rivers to be quite high. Isn't this going to be a problem for you as well? Or are you hoping to catch them still frozen over and just blast across the icy top?
Third, I don't know why you do this to yourself (travel ridiculous distances on hideous equipment), but it sure is entertaining for yours truly and company! Thanks!
Safe travels my friend.