Weather is horrible today, so why not keep building. I cut out the rear formers from 1/8" balsa and then glued them in place with the fusebox fixed over the top view plan. I did some light sanding on the top and bttm to make sure there were no unexpected high spots among the formers. I then sheeted the top rear section of the fuse with 1/16" balsa cross-grain. This will add some strength while handling the fusebox.

I added a small piece of 1/8" sq. balsa on the backside of F-6 to support the 1/16" sheeting at the rear face of F-6. This will allow me to leave a gluing surface for the 1/16" ply that is used on the top from the firewall back to F-6.