Expert Advisor To be Attached to a Two Moving Average Crossover System

Dear Sir or Madam,

I would like to create an EA that would be attached to a 2-SMA (simple moving average 2; HL/2: median) and a 3-SMA (simple moving average 3;HL/2: median)

1. The idea of the trading system is as follows: 

• To open a buy when When 2-SMA crossover 3-SMA by 10 pips
• To open a sell when When 2-SMA cross down 3-SMA by 10 pips
• Only one trade should be opened at a time and be closed by the opposing signal

3. Trading Signals:

• Buy signal:  the SMA2 crosses the SMA3 upwards by 10 pips (SM2>SMA3)
• Sell signal:  the SMA2 crosses the SMA3 downwards by 10 pips (SM2<SMA3)

4. Positions are closed: at opposite signals: Buy positions is closed at Sell signal, and Sell positions is closed at Buy signal. Only one trade opened at a time.

5. Positions are opened at the market price at signal

6. Lot size: should be variable as an input-value

7. Generalities:

• should be working for any time frame but not for scalping ( I would say from M30 to D1)
• Any currency pair
• Signals should be visible on the charts and maybe pips made
• Any suggestion to improve is welcome

Thanks in advance!