http://www.titanaircraft.com
I've flown in one of these before, the T-51. Extremely fun and amazingly nimble.
Here's something that looks like it complies with "fun" and some of your criteria. It's brand new, available as an E-LSA kit(don't think that plans only available), very retro cool in appearance and appeal and has begun making the rounds at shows and coming to AV this summer.
http://www.sam-aircraft.com/#/splash-page/