I am trying to build an N gauge Rail Head Treatment Train set. I've got hold of some 3d printed RHTT modules and a pair of FEA-B spine wagons for the base. I know where to get the Network Rail transfers from (Railtec). My one major problem (famous last words!) seems to be what colour of blue the modules are. From the limited research I've done they seem to spend most of the time mucky so I'll probably end up weathering them but I would like to get as close as possible a match for the blue. Any help much appreciated.
Thanks Andy for sorting out registration problem.
Peter