After staring at things for a little bit, I decided against servo wiring tubes. It's a very short distance to cover, with only two ribs in the way, and no easy way to attach a smooth tunnel.
So next I covered the bottom of one side of the wing, ailerons and all, after covering the sides of the aileron.
Then cut free the aileron and covered the servo hatch.
Here's the servo installed from the back side before coving that up...
And here's the top of the wing covered too - all done with one side, ready to go on to the next.
Of course this is when the roll of covering I was using ran out, and the only other roll of white covering I have is a tiny bit different in hue. *sigh*
I think I'm just going to go ahead with using it anyway. Hobby budget is pretty spent at the moment
So one wing and the vertical stabilizer will be a tiny bit brighter white, but once I get the scallops painted on I don't think it will be that noticeable.