Or maybe you are contemplating a switch to this scale?
I did have a layout many years ago which was an attemp at modelling London Euston. Lots of Lima 86`s, blue and Grey mk 1`s, and a scratchbuilt class 83! Most of the stock has long gone, but I did come across a few bits quite recently;An 86, a few coaches, and a few wagons. Also a few spare parts.
Ebay, or for another day??