The coach numbers and end information came from Railtec transfers. They will actually print out individual coach numbers for you on request. I worked out what numbers they should be from this site.
So far the ultimate in fiddlyness, (if that’s a real word) but I am amazed with thee detail of the lettering. I actually have a set of no smoking transfers to go on the inside of the windows once they are fitted. I have absolutely no idea how I am going to manage that!