Now I can access the bottom of the fuselage to do the work I couldn't do while it was on the jig.

The forward landing gear former is made from 1/8" light ply laminated on one side with carbonfiber. Once in place, this former ties the front to the landing gear plate into the fuselage spars to prevent the front of the plate from pulling out of the fuselage (lesson learned the hard way from Lightning #1). This is glued in with hysol. There are two rear landing gear plate supports, made of the same laminate, glued into place at the back edge of the gear plate to prevent the plate from pushing up into the fuselage.

I also glued in the lower 3/16" by 3/8" balsa cross bracing.