RE: trailing edge of aileron repair need help
Take a piece of 1/4" balsa and cut out the aileron and fit the stick, sand & cover. Or maybe you could use some filler and sand & cover. I agree wit pimmnz; just seal it, cover, and go fly.
The only way I know to keep it pristine is to hang it in the living room (that'll get HER blood boiling, but that's why we married 'em)