Please see the most recent updates in the "Where did the .com name go?" thread. Posts number 16 and 17.
see, being colorblind isn't always easy...I'll try the other blue. And yea, weathering, no worries, but before I got my teeth into it, I wanted to be sure about the blue. And rightly so it seems.
So I forget about the Marines paint, and no, I don't think Murphy's version without the cowl was part of the original package. I am talking here about the Duck by Paul Domingue of course, not the other one, which did have a version without the cowl.

ejoiner, I tried your blue, but that's far too light. Here's the texture:
see how the color is lighter that the blue of the fin flash?
If you watch the movie:
https://www.youtube.com/watch?v=e3anBO5O5yo
from 31:00, you'll see that the blue paint is in fact darker than the blue of the fin flash (which I am assuming has the right RAF colour), so I am trying for a darker blue, not a lighter...
Back to the drawing board...