Hello!
I've built this one for my brother in British Airways livery - it was fun. While it's too late for your model (looking really good, by the way!), I'd like to advise other people building it, that the model really needs a wing spar across the fuselage - without it the fuselage flexes every time the model is moved and the glue joints have a tendency to crack, the fuselage isn't rigid enough to take care of those huge wings. The model also needs considerable weight in the nose - otherwise you are going to get a tail sitter.
Good luck with your build and have a nice day
Paweł