Aha! That's an interesting technique, Dave, looks very good to me. You can't see that it's double-layered either, which is a little surprising.
I also have some old Crafty paper, but it looks like I shouldn't be counting on that. It's a shame they closed, they had some interesting products. Thanks for the tip about Mister decal paper.
In the midst of all the excitement about the panels, I think your interior deserve a mention too (the coach interior, not yours!). Looks excellent.
Will there be passengers? Always a dilemma, I think.