Class 66 only freight Class 66 the royal Scotsman private train Class 170 and Class 158 Scotrail passenger Class 43 locomotive HST Scotrail passenger or LNER Class 67 or 73 Sleeper passenger.
The class 73 has a kind of look to it that I really like: Anyway, great proposal! the amount of rolling stock would be big, but DTG could do this by adding some in a DLC. I like it though, would be a great addition to the UK routes in my opinion.