Getting ready to purchase a 50 size heli for my fleet and was going to buy the new Sceadu Evolution to try something different. However, while browsing through this site I heard mention of a new Evolution 3D that's coming out. By the pictures that were shown I might wait until this one comes out. The metal head parts look like they are a good add on that I would just as soon buy in the kit, instead of adding these parts as option. Anyone know when these might be available, and how much? Thanks, Chuck