Electronics is all HobbyKing stuff at the moment I'll admit
Except the servo, it's a Savöx, though it's also a pretty standard unit. You don't need exceptional power for the steering, though I would not recommend a low-profile unit - but I wouldn't even use one in my RWD anymore, they really miss out on power and speed.
As for the availability, I'm very busy with my current internship and progress is a bit slow at the moment. If all goes well I'll make some good progress around Christmas, but it's hard to predict. All I can say is you should
not expect it in the first quarter of 2015.