Received my battery box, stainless firewall pass throughs, and lord engine mounts / bolts. I fitted the pre-fab angles, drilled, deburred, riveted, installed the nutplates. Fitted the box to the firewall and drilled the associated mounting points. Sealed and installed the recess and cleco'd in place, will rivet it tomorrow. Positioned the firewall pass throughs, drilled the firewall as required, onr on each side.