Here are some updated pictures of the finished quad.
I did some little modification like the bottom plate now attached straight under the arms, and the motors were wound as 10turn Delta instead of Y because the previous configuration had too low maximum thrust. now its perfect.
I decided to change motor/esc and completely review my quad.
The new motor are self wound 2212 motor from Giantcod wired with 10 turn Y delta(y connection revealed too low kv for 10×4.5 or 10×6 and 3s and delta was exaclty the needed configuration) connected 0.45mm wire. It will use 10×4.5 EPP or 10×6 GWS dd propellers. it will use 15-18 SS Esc from Hobbyking.
This quad will be mainly used for fpv and to carry some light compact camera. This will be the airframe to be powered with a future ARM based flight control but now is powered by Multiwii flight control software on an arduino based boad..