The Aquabird was in the Sept. 1992 RCM Magazine. It says 60" wing, but not sure if that includes the winglets (7lbs also). I bought the plans and started building the fuse a couple years ago. The wing is a foam core, and I need to order some from a good foam cutter. It's suppose to have a big cowl on the front, that's why it's tail heavy. With the four stroke on it, a bigger prop with less pitch may be nicer, less speed but more air being pushed through. Your ailerons look like regular balsa ailerons, constant shape which will lessen the roll rate (but much easier to setup). The plans show tapered ailerons, similar to the northstar.
I would love to see what the radio setup looks like, is it possible to see a few more pics SirKnight?