David,
You can always come over to the dark side and start scratch building. I find it easier than building kits. Find a plan you like and blow it up to whatever size you want. I have been doing it since the 70s. Nothing like a 84" Kaos. Believe me, the bigger they are the better they fly. The last two are not pattern planes, but I still fly them like they are.
The one under construction was called a Revenger. I clipped the plan out of RCM who knows how long ago. Just building it 72" span, and 72" fuselage. Like I said, scratch builders can do anything they want.