I decided that to ensure Bachmann annouce a MK1 BSO coach next year, I would make my own model on the basis that manufacturers usually announce a model after I have made one. I have no idea if a BSO is right for my Bristol based layout but fancied the challenge of some proper modelling and thought it maybe of interest to other RM Web members.   The approach I have taken is very similar to that taken by "acg5324" to make a 2mm version in that I decided I would use Bachmann BSK donor vehicles an