What's he on about hear you say.
I will be making the dapol deltic as if she made into the 90s with a different livery and I have the kit and windows as the kit never had any and also the correct decels.
So please see the pics of the original color and the one I am attempting to do.
The Deltics, latterly class 55 under the TOPS code system did make it to the BR Blue/Grey era but they never had the Large Logo livery (as far as I am aware) applied like the 37's, 47's and 56's. I'm interested to see what you do with this livery on this class of loco....good luck.