I am building a Kadet Senior.  Not that it takes a big stretch of imagination, but it will look like a Cub when I am done. 
Elliptical stab, moved the rudder back and shaped it like a cub rudder, round wingtips.  Ailerons and flaps.
3 acres of Cub Yellow Ultracote. 

Anybody who doesn't think a KSr is Aerobatic has not bent the sticks with one.  Even the "as designed" 3-channel is a hoot and will fly inverted indefinitely. I saw a video of some old geezer flying one and he refused to roll it because it had a flat-bottom airfoil. (Insert expression of disdain and contempt here)

Cubs I have flown will drop a wing and need some altitude to recover.  Kadets I have flown are more forgiving. 

I have several "fuel" motors I might use, but I am also thinking that a 1000 watt electric setup would be about right. 

Seawind: Buddy of mine fixed his foamie electric seawind  to have pleasant water manners by moving the step aft to where it should be, and extending the drooped wingtips down to the height of the top of the step, with a slightly enlarged planing surface.  He has NO issues with instability on takeoff or porpoising on landing, now.