Allesandro,

I made the Ziroli Panther myself. I enjoyed building it and I would not hesitate to recommend it. Infact my Panther is now turbined.
If I were you I would decide which way I would want the plane to be powered because if you are eventually thinking of turbining the plane you will have to make soome modifications which can be easily made during construction but when the fuselage is complete than such modifications would be slightly more awkward to make.
Anyway, just to get you on the track i am enclosing a photo of the plane in bare bones and another one when finished.

Ragards

Reuben
Malta