Design me a Product :Brain Computer Interface Module

Basically a small Brain Computer Interface Module.I want the circuit diagram ,as well schematic for 8 channel EEG capture circuit. I want the freelancer to build the complete circuit and deliver the final product. The controller which i am using is 8051f340. I want to give the EEG signals in this controller. I was also thinking of using ADS1256 24 bit sigma delta ADC, So No amplifiers required. I need to interface this IC with the controller. Please bid only if you can do it in perfectly. This is my important project so please no time wasters!!! More details will be shared with the appropriate person