Terry,
Check out my GEEBEE Z Construction page.
I plan on using a Saito .56 in my Z.
I haven't done anything on my build since March or so but that has been because of combat flying and repairing combat planes. I am building an older version of his kit when it was kitted by Hobby Hanger. Adrian has since re-designed the fuse to get rid of the built up box using sticks and now has a 4 piece laser cut frame work of lite ply. It looks to be a lot better. I just bought the R2 kit directly from him and all I can say is WOW! It doesn't seem like a whole lot of wood in the box for a .60 sized plane but it's all there. The laser cut sheets look well thought out and looks like it maximizes the whole piece of wood in some cases. I think his .60 sized R2 would also make a good candidate for electric as it builds very light.