That would certainly do the trick, but I'm trying to do it without another trip to the shop. I prefer not using rattle cans, but the right product for this is probably out there.
Right now, I'm just trying to do it with the products at hand. Even if it all fails, I'll still have learned something about paint :-)
I do feel with simple white paint with gloss varnish, staying within the Vallejo brand should work, but somehow it keeps failing.
Thanks anyway, and that is one nice-looking airliner, by the way!