Philipp,

using a swashplate solution is more or less a must for the Rotodyne. You'll have to tilt the rotor back by about 10° to get the thing flying. Now, if you use a D.C. head like on your Rotorshape and want full head control, you'll have to allow for a further 6° to 10° more back tilt. Think of how high your rotormast will have to be to get you enough clearance at the back of the Rotodyne. It won't look good anymore.

Jochen