Hello Gernot,
Go for it! I am considering converting an American-style reed organ in such a way that it could still be played as always, simply by pumping the pedals and leaving the electrical switch off, but also being able to play it as a digital computer organ by not pumping the pedals, but turning on the switch. Your proposed sample set might be the perfect thing to use for the sounds of this little organ, and such a wonderfully low price! The idea of being able to download it also is attractive, expecially to those of us who live overseas.
Mike 353