Hi Mike,
I am going to fit a Hacker C50 14XL Comp motor.
The batteries are a bit up in the air. Intention is to use FlightPower unless a better solution comes up prior to needing them. Currently Model Flight have the 5350mah Lightweight 10S C17 packs, and a number of the guys are using them quite successfully. The guys tell me they weigh 1150grams.
Also on their web site they have the FlightPower 5350 Evo Lite for F3A, but it says they are not yet available. According to the web site they weigh 1000 grams and if true saving 150grams is a big saving. I intend to talk to Model Flight to see what the story is re them as an alternative.

I know the Futaba wing servo's fit like a glove, but they are only 4.8v and not all that strong, and I think stronger aileron servos to fly P09 would be better, but am open to comments.

Regards

Glenn