I didn't want to drill into the engine mount so I secured the firewall tray with four 1/2" EMT conduit hangers. The completed assembly is a least as rigid as the firewall and should support hardware just fine.
Used a Brother label maker to make switch labels. Attached them to the sub panel and installed the switches and breakers. The white fillers in the breaker holes are awaiting some proper sized breakers that I ordered from DigiKey today.
Started laying out the components on the firewall tray. The white container is a possible smoke tank option. It is actually a windshield washer reservoir with an integral 12 volt pump. Have no idea if the flow rate would be adequate or how long the 3 pint oil capacity might last. It has a centrifugal pump, so oil would flow through it with gravity and I'd need a solenoid to shut it off. That might allow two options, gravity smoke or lots of pump smoke.
