Mike,

There is no particular place you need to mount that elevator plate. If you want to move it forward or aft, it doesn't matter. Just as long as you make sure it's glued to the fan mount and the fuselage. Also, there's no reason you cant relocate the hole that the pushrod goes through--in case you wanted to push the mount in toward the wing shelf.

Robart makes a strut for the Yellow A-4 that has the right amount of trail to it. You can get that from me or Yellow direct.

The JR 9011 is a great servo for the rudder. I've seen the Hitec 255MG used with great success, although I am a JR fan.

I'm back from Germany, so gimme a call...