thanks for the info, and sorry i took so long to answer-didnt get an email feedback...
Another point: to hide the engine would it be a good idea to put a super cub cowl on? looks like a pretty good idea, the only thing is that the super cub cowl looks somewhat ugly...
I've seen bungees are pretty simple to build, any suggestions?

And one last thing: is it possible to build a scale sunroof for this plane?, by the way im not going to do anything worse than hammerheads or attempts-to-hover the plane

thanks again,
Harald