Gap traders EA needed

I need a EA that will trade gaps as soon as the market opens after the weekend. Some brokers open on Sunday other Open on Monday. The EA will need to detect when the market opens so it can look for gaps. Here's the settings I need the EA to have 

1. Lot size

2. TP

3. SL

4. Max spread

5. Min Gap Size

6. Break even 

7. Trailing Stop Rules. Trailing stop will be activated when price fills gap. If you want to activate this function you will select True or False. True to activate, false to deactivate EXAMPLE http://imgur.com/a/qBln3

8. Close gap half way True or False. EXAMPLE http://imgur.com/a/Tn038 When True this will close the trade when price closes the gap halfway. When selected False the EA will close the gap completely. 

The EA must be able to backtest. It might be best to check every tick after market opens to see if theirs a gap. 

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