EA based on donchain , sma and mac d

I am not going to explain to much in here , because i need to ask something of you before i explain everything in detail. based on what you can tell me i will give more information.

this ea will run on a  5 day graph. ( 5 true range)

basically i want a ea that trades using :

donchain ( 20 day )

The sma (14) .

Mac D (14 , 26).

when the pips break through the donchain resistance line 2 times ,when the sma 14 line passes through a rising pip and when the mac D 14 is above the mac D 26 , then only must a buy trade be started. 

the sell trade will be activated when the 3 conditions are met but in reverse ( donchain support line is broken through 2 times, sma 14 passes through a falling pip and the mac D 14 is below the macd 26.)

a trailing stop and a stop loss will also be needed.

the trailing stop will only activate when the 2 mac D crosses , sma crosses the pips , and will be 50% of the ATR ( average true range )

the stop loss will be the buying price - Atr.  "" entering price - Average true range "" { buying market }

&&

"" entering price + Average true range "" { selling market }

the position sizing will be 5% of current account value .

i want to know from you . if i run this ea on a broker , will it be able to chose the top 3 markets to trade on based on other conditions ? 

pleas get back to me before you start coding this. !!!!!!