I started to bild a Hexa on my own. I milled two centerplates out of CFK (2.1 mm thickness) and the mountplates and lipoholder out of 3mm blue plexi.
Now im only waiting for my Ardu Pilot 2.(orderd on 05/21/2012)
6 x 2820/1100KV
ArduPilot Mega 2
6 x 10/45 Propps
2 x 3s/2100A Lipo
Size will be about 850 mm between the motors.