The Kaos and the variations all fly well. The Diry Birdy also flies very well. There are several options like the Boxer, Escape/Geat Escape, XLT which all fly well, but have foam wings and stabs. They can certainly be built with fixed gear.
I've flown patten since 1974. I competed with Dirty Birdys back in the late '70s. 3 years ago I built another one from an origina kit, but with fixed gear and all monokote, OS 61SF. It Flew great - until the elevator servo died. I bought a new kit from Joe Bridi and they are very nice and a great deal for the $$.
If you want an all balsa kit and don't mind spending a little more money; MK still kits the Curare. MK kits are some of the best all wood kits in the world (THE best IMHO) and fly great. There are still some Magic kits available and the Skymaster .60. The only problem is that you have to get them from Japan or Singapore and shipping is a bit expensive. Depending on the kit, it will cost beween $150 and $250. If you're interested I can email the web addresses.
You can also get plans for many great flying pattern ships:
RCM has plans for the Kaos, Dirty Birdy, UFO and Loaded Dice
MAN has plans for the Curare, Arrow, Deception, Compensator, Atlas, Intruder and some others.
Good luck - nothing flies better than a pattern plane.
-Will B.