If you are suggesting it, really need to fill in a bit more detail. Having played the earlier MSTS version and the route in Run 8, though, I would suggest the biggest issue would be the BNSF licensing as you can’t really do Cajon without having both them and UP through the pass.
BNSF license can only be issued to customer service in the United States, we can use VPN to buy from a server in the United States, haha!