I didn't realise what you meant last night by A.P. If you want good flight components to protect your camera gear the sky is the limit when it comes to spending money. I suspect the S.C. is rudder and elevator only? If so get some good Hitec metal or carbonite geared servos like the HS81MG or HS56HB. There are many more that would be as good or better but I have been happy with these so far. I'm sure you will get lots of opinions if you post this question separately. If you get a new radio you should get a Rx with it. I use a variety of Rx's, but the more expensive (and potentially dangerous) the model the more expensive the Rx and servos get just for piece of mind. If you are using more than two servos with a 3S lipo (or equivalent Nickel cells) use a ubec or Rx battery pack.
It looks like you're ready to start spending some money