Been a while since I have been around the helo forums! It is good to see another 60 getting built! I just thought I would share a a couple of general items about Army hawks, they may or may not apply to the SOAR airframes, Gino may be able to clarify.
The rotor head on Army 60s is most commonly green, I have seen a couple of black ones and the mast extension below it is usually bare titanium but it is not at all unusual to see them in black or the occasional green. The blade dampeners (attached to the trailing edge of the blade near the root ) is black. There are a few places to add some bare metal details but almost all of the head is painted.
Gino is quite right about the blades, the ones in the kit have a decent droop to them. If you want to split hairs, put a little negative twist in them so that the tip has a shallower angle of attack than the root but this may not really be worth the effort.
The above info comes from experience with a lift unit so take the color information with a grain of salt.