Ventus 2.6 Servo size and ducted fan unit

[swarf rat]

What size ducted fan unit and motor size for the Ventus 2.6? Being new to ducted fans, i don't have a clue as to the right fan fot the Ventus 2.6 power pod. Also the servo cut outs measure 1.5" L X .5" W a bit smaller than standard. I'm tempted to buy a Futaba 7 channel computer radio to handle the flight systems. Instructions for the ARF are sketchy and support from the retail seller is none. I may wind up with a wall hanger as me thinks it may be a hand full to fly. At my age (57) too easy to re-kit one on impact.