Modification of Gann indicator and develop EA

Hi,

 I need an Expert Advisor for MetaTrader4 new build, this EA will make use of Gann Hilo Activator and EMA. An order(buy and sell) should be executed at the cross of the two indicators.

Indicators 

1. Exponential Moving Average 

BUY ORDER

If EMA crosses above Gann hilo, Then BUY

EXIT BUY ORDER

If EMA crosses below Gann hilo 

SELL ORDER

If EMA crosses below Gann hilo, Then SELL

EXIT SELL ORDER

If EMA crosses above Hann hilo.

Some additional requirements are there. will be discussed on pvt.

 The EA is required on urgent basis pls.

 Thanks