i live in the UK and ordered direct from ikarus in Germany. it will be a few months before the shops have them for sale here. i did the same with the Pitts shocky which is destined for the VPP. one thing to note, if you build the hub as shown in the photo ( pitch linkage trailing the blade grip ) you get binding on the 2 screws that would normally have the O ring retaing a GWS type prop, with what looks like very little pitch? i have built mine with the links leading the blade grips ( the pin in the blade grips is offset front to rear ) and will put a meter in the system to see what current i'm drawing. if you are using this setup on another motor, you need motor shaft protruding to fit the hub ( like a heli tailrotor ) onto. if you use the red ikarus motor, no shaft is protruding from the front as the blade holders screw directly to the motor. you would not get the binding i was refering to earlier if the hub is used.