Im sure it isn't the most convenient option but there is a Toyota in Whitehorse, Yukon. About a 12 hour drive from Anchorage and looks like they have a 2020 TRD for 54K CDN (as of the rate right now is 40K USD) and am almost positive Yukon only has GST (5%) and no provincial tax.
2020 Toyota 4Runner for sale in Whitehorse, YT serving North West Territories | New Toyota Sales