Price reduction request on fly control system

Would you be able to go down the price on this item.
http://www.hobbyking.com/hobbyking/store/10092Flymentor_3D_helicopter_stabilisation_System.html?
The reason I am asking this is I already spend over $300 at HK for a small kit 450Hk with all electronics and there is always an electronic part that doesn't appear to work properly with another one, so I am looking at this flycontrol system to get my Heli finally flying. I have never been able to fly more that couple inches above ground and the heli electronics doesn't seem to do what is supposed to I am willing to spent more thab $50 on this to try to address all these components working together, one last try after I will sell this back on ebay...!
I cannot spend $75 because i already bought the gyro the esc, and all these components that are supposed to take care of the controls but don't work as expected. Thank you Pierre Moulinier