Thanks - some really good ideas so far, and a few are very interesting.
As to Rotax, I know I am biased, but I would be happier without a Rotax, and also not a kit built.
Maule looks very interesting, very impressed with the Helio and see it may be coming back into production (it looks a hell of a lot of fun), not convinced the Dornier is all that STOL.
Look forward to some more suggestions.