RE: Herr Aquastar questions.
I have one of these kits gathering dust under the bench. I just got it out and had a look. The information you are looking for is on the plans - no mention of it in the manual:-
CG is shown as on the centre of the mainspars. That measures 1 3/4" back from the front of the LE on the fullsize plan
Elevator throw is specified as 3/16" both ways.
Rudder throw is specified 5/16" both ways.
I trust this helps......
Alan W