Good find
hmm making an EA is non-issue man tingali,
making the right strategy though is critical 
pero good site cya to get your strategy coded right away (provided tanan indicators/parameters available dira).
so ma backtest dayon nimo ang performance.
EA or not, you have to backtest your strategy anyway hehe.
I recommend though not to rely only on technical analysis but also
use fundamental strategy (like information gathered from news sources on economic policies, political ideologies, inflation, growth rates, unemployment forecast..)
One example is the U.S. Nonfarm Payrolls released a while ago together with 2 other economic data
I got a good 71 pips on the swing hehe