The Kalispell and Great Falls locations have an option to refine a search by VIN number.
http://www.kalispelltoyota.com/searchnew.aspx?Type=N&Year=2016&Make=Toyota&Model=Tundra
http://www.city-toyota.com/VehicleSearchResults?search=new

Also, here's a link to all the dealers in Montana as an FYI.
http://www.toyota.com/dealers/Montana

If those two dealers don't have the truck, I would hazard a guess they are in the same 'dealer network' of who does have it and could have it delivered to them at no extra cost. Then drive up and get it like you already planned on doing.




He went over yonder way