Move the lock cylinder with your key several times to work the graphite into the mechanism. Do this to your trunk lock as well. The post How to Grease a Car Door, Hood, Lock, and Latch appeared ...

Attached the lock and hinges to the box and lid. Covered all spackling paste. Then apply acrylic paint. The top layer covered everything with transparent acrylic varnish.

The “live hinge” reminded me of the “CA Hinge” from the balsa wood RC airplane models. It’s basically a fiber/fabric/plastic flap that you cut and superglue into thin slots.