Motor Mounting
I used a motor mount based off of the F3AU/Northeast mount (carbon instead of aluminum) and some 1/8" 5-ply plywood for the firewall and tabs. I fit the firewall with the motor attached until I had the right fit. Then I used some Medium ZAP to tack in place. Once it was dried I started to make the rear mounting tabs. Once those were fit I tacked them in as well with the motor to make sure everything was aligned. Once I was happy with the fit I removed the motor and motor mounts and epoxied in the firewall and tabs.