Yeah, I amended it after going back and looking more carefully! That second picture and the angle in the cad drawing, threw me off by it looking like a very slender wing for the estimated weight. The prop will definitely be a big help if power is needed in a hurry! I can't wait to see it fly!
as far as the split elevators go: I've seen many guys build a joiner for the halves out of wire like "[" with the short legs mounted in the elevators parallel to the elevator. Now add a control horn to the center, pointed up or down like a normal control horn would be, and run your servo linkage to that and you now have control of both halves with one servo. Most of the setups I've seen like this were made out of thin metal plate for the horn and 1 piece of wire for the joiner so they could be soldered together but I think it could be done other ways that might work better for your plane, too. Does this make sense in words? I don't have any pics handy and I'm in a hotel room ATM so I can't show you...