Chuck,

You've been making some good progress! This is very cool.

As for the pipe tunnel: It can be a bit confusing because the fuse sides have very little curvature in this area and therby making it very easy to get the floor on backwards. I have attached a pic showing how the outside edges of the pipe floor should meet up flush with the fuse sides. In your case I will be very interested to see what you do with the pipe tunnel since you are running electric.

As for the little holes at the nose: I filled these with some scrap 3/8" sheet balsa (use the scrap from the sheets that have your L.E.'s and Hinge caps) from the inside. I shaped them so that they protruded through the holes. I did the same in the spaces between the nose ring former and F-1. I rough sanded them flush, then went back with some light filler and final sanded. It was very easy. In the last picture you can see the remnants of the filler and the end result.

Hope this helps,
Mark