Nutter wrote:Nearest supplier of the humbrol railmatch colours is not local and don't want a 50 mile round trip just for a pot of paint
Do you have Boyes stores in your neck of the woods? If they are just a northern thing then you may wonder what on earth I am talking about - if so then please ignore as it would be a 400 miles round trip!
However if you do, the sell Vallejo acrylics which come in a huge range of colours. These work very well on Shapeways FUD. Have not tried them on other materials, so can not say if they would do equally as well or not on those.
They are not labelled by railway friendly terms, but with so many colours you should be able to find something close. I can see that you already have this covered, but for info I use 099 GER. DARK GREEN for BR green diesel main body colour.