Hello Mick,
Don't forget that this route was created in 2003, so, there are no modern Trainz creations within it, such as specific stations. I'm unsure if anyone has ever built a Kings X station in replica, but, I stand corrected if that is not the case. However, It's a great layout and even better if you merge it with the other half done by hooverman called ECML Central on kuid:69768:99958296, which then gives you a fabulous straight ride from London up to Doncaster ( approx. 150 miles ) through all the stations and yards and towns in between, it's a personal project of mine to update it with all new trees, buildings, etc. Even though it's nearly 6 years old, it's a superb layout depicting the rural and township landscape of the East of England, and was beautifully created by 2 of the UK's finest route making Trainzers....
There weren't too many assets to download with either of the maps, can you give us an idea of what you are missing please.
Cheerz.  ex-railwayman.