Manfred,
The last thing I would ever want is to squash someone's dream so I am not going to tell you it can't be done. But I will tell you there is a lot more involved in developing a new machine than most people realize. Dreaming and coming up with new ideas is easy and fun and sometime even turns into something that revolutionizes an industry. However, it is a long ways from the dream to the drawing board to the prototype and finally to a marketable product.
Our segment of the sport aviation world is so small in numbers that there isn't much enticement for any "profit motivated" company to invest heavily in an idea to bring it to market. What that leaves is guys like you and me and if the dream is big enough and you are willing to invest years of your life and more money than you have to bring your idea to fruition, there is always the chance that it may work well and others may want to buy some and you could even make some money (if you are a smart businessman). But unless you already have the aeronautical engineering background and or years of experience in building and designing gyroplanes, you are first going to need to learn what you are doing. That will take years of studying and learning and some experience to learn what doesn't work well, then the process of developing a new product can begin.
If you don't already have that knowledge and experience, you would be much better served by sticking with a proven design that someone else has already developed and proven. There are several options available today to get into an already proven ultralight gyroplane. If you are interested in learning more about the Butterfly Ultralight, I am a Dealer and would be happy to talk to you about what we have available. If you are interested in learning more about rotorcraft in general join the PRA chapter in your area. (website is "utahrotorcraft.org") There already is a way for you to get into the air if you really want to do it. Just start learning about what is already available and talking to people that are already doing it and you will find a way that will work for you. Best of luck!!!
Doug Barker