Well, I think you need to more tightly define your goals and design criteria. Things that come to mind are:
1) glow/gas/electric power?
2) What are you trying to improve upon from existing designs? Better rolls, snaps, loops, what?
3) One piece wing or two?
4) All wood (cowl, canopy) or wood airframe with composite bits added?
Not trying to be a killjoy, just being practical.
And on a personal preference note - why not a bipe?
Mark