Ok, i will stick with the original elevator pushrod. As for the firewall reinforcement I was thinking of drilling holes on the fire wall sides and epoxy sticks in the holes, I really don't recall how the tecnic is called but I did it also in my extra 300S to install a grasser engine. Will this work better than just a sheet of fiberglass or will the fiberglass be better? I say that because putting a fiberglass sheet on the front of the firewall would mean to do again al the holes of the engine mount and the fuel tank exit.