I am amost done, but it seems that the closer I am, the slower it gets

. I need a place to mount my throttle servo. I was thinking of doing it upside down bolted to teh top part of the firewall. Is that a good idea? The way the engine is mounted (DA50), the throttle servo needs to be pretty high up there, but I really don't see any good supporting structure.
More pics later. ... I promise