Buy Script and Sell Script

Need buy script (and sell script) with the following parameters:

PLEASE TAKE NOTE THAT I AM USING 5 DIGITS BROKER

Volume: AUTO (AUTOMATIC)

Profit Target: $1000 (manual key in)   

Buy price: 1.11000 (manual key in)

Take Profit Price: 1.11050 (manual key in)

Stop Loss Price: 1.10900 (manual key in)

Leverage: 1:500 (can be changed accordingly between 1:100 and 1:500)

EXAMPLE

When i press ok (or submit) I need the script to automatic calculate the volume i need in order to achieve my profit target, according to the price i have input (entry price and take profit price). So from the above we know that we need 5 pips to take profits. So i need the script to auto calculate for me the volume needed for 5 pips to make $1000 dollars. (so it should be vol: 20.0)