Are you gone add an other former in front of the landing-gear plate? (or on top)?

The momentum of a hard landing will try to bend to LG-plate frontside to the bottom of the plane. It will easily tear your fuselage.

A support former will spread that force over a bigger part of the fuselage.

Cheers
Winfried

p.s. Ignore my above: I didn't look at your pictures in detail,you already made that former