You want the Slow Stick not the Pico Stick.... The PICO is about worthless in anything but the calmest of winds... The slowstick can actually fly in a few mph...

Either the EPS100C or EPS300C motor system would be fine, the 300 having a bit more power, the 100 having a little longer flying time...

You can get them here:

http://horizon.hobbyshopnow.com/prod...p?prod=GWS1040

It's likely you can use you receiver, and servos inteneded for your Tiny...

Probably a GWS 4 channel and a couple HiTec HS-55 servos? Or maybe the GWS Pico Servos...