Hi Headsup welcome
As you might be aware by now that this topic has be discussed before many times over the years and we do get some interest from Trend then sadly it fizzles out. I am not sure of the numbers but as far as i know I am the only one from the UK they might be others but they do not have any input in this forum. Many have come and gone because simply they have no UK models that we can connect to. There is a European Class 66 for sale in the shop, and there was a Dutch version of the Class 08 but this is for earlier versions of EEP. I tend to Model in North American setting because there are more Locomotives (about 8 models) and some rolling stock 2 open hoppers and 1 type of signal, not much I know but that is all you can purchase here in the Trend Shop.
you'll have to create it yourself
The reality of the situation is exactly what Stephane said, if you want a model here you will need to build it yourself.
Ps I hope you enjoy using Blender and building models then you will get plenty of assistance here with HomeNos .
Craig .. is Sunny Scotland .. well it is today
double PS .. i hope you stick around its a great program with years of enjoyment .