Since I am going with the Odyssey battery I ordered this option from Vans. Also trying to get as much done with stuff that mounts on the firewall if not installed at least predrilled and ready to mount.First I fabbed up the top bracket and firewall doubler. First I measured everything up and marked it and then on to the drillpress.I drilled the holes and polished evething up with the diegrinder. Next I drilled and deburred the battery box and mounted the platenuts on the side brackets. Last I riveted the side brackets onto the box and bolted the battery in place. Its ready to mount to the firewall.