Built an EA for MT4

Hi, i have an indicator which is a price channel represent the highest and lowest price during "x" period in the past. I want to buy when price break this channel (on highest side), and put stoploss on the low of the bar before break out happen. Then when the lowest side of the channel is surpass my SL, adjust SL to Trail that low channel instead. Vice verse on sell side. Risk management required : open trade with "xx" lots, buy calculate % of risk between entry price and stop loss. I can send full screen caps with complete details and example of trade to bidder. Thanks.