High probability Trading System

hi,
i need someone to help me to improve this EA , I have been using it for quite sometime and it looks good this system is developed by a chief Forex strategist.
This EA is suitable for London and US trading time only.
What i need is someone to add time trading trigger for this EA and also to disabled the EA once a stop loss or take profit is hit.

i am willing to pay anyone who would do it give me your best price

What more can you say about this EA? Is it profitable, and what timeframes and pairs do you use it with? (Do you still use it? It's been a few months).

When you say disable the EA after an S/L or T/P, then you are apparently saying you want it to take 1 trade. What would be the reset? Time? Manual intervention of some kind? 1 trade per day?

Where did you get this EA, and what was it's name? I don't see much info about it and it may help to know more.

System is:

Buy:
MACD (12, 26, 9) > 0.00050
SMA(10) < Open Price
SMA(100) < Open Price
SMA(50) < Close Price

Sell:
MACD(12,26,9) < -0.00050
SMA(10) > Open Price
SMA(100) > Open Price
SMA(50) > Close Price

Stoploss: 30 pips
Takeprofit 40 pips.
Trailing stop: 30 pips