cubdriver,
Do you think your rudder servo will be ok the way it is mounted? I was thinking of doing the same install as you, w/ my 5735, but it seemed that there would be a LOT of flexing going on, where the servo mounting rails you made attach to the fuse. (Thin plywood where your servo mounting rails glue to) Did you do anything under there to beef it up?
Also, does the ZDZ80 stick out of the cowl at all? It doesn't appear to.

Keep the pics coming! Look forward to pics of the pipe! Thanks.