RE: Second copter ??? package unit ???
I'll second that. Heliproz has some great packages at great prices. I would definitely go with the OS engine and Futaba radio gear and gyro. You won't be sorry. Give Heliproz a call and talk to them and listen to their recommendations.
As for the size, have you thought about a 50? The Raptor 50 is more popular and more capable than the 30 heli for just a little more money and Heliproz has several packages to choose from.
Good luck with whatever you choose. Let us know.