Hey Guys. I just coded a "Buy Script Creater" with AutoIT and wanted to post it here:
Check the Checkboxes with the Weapons or other things you want to buy. Select a Button. Select your Counter Strike: Source Directory. Default is: C:\Program Files\Steam\steamapps\%ACCOUNT%\Counter Strike Source"
Click "Create Config". It will create a buyscript.cfg with the bind and write "exec buyscript.cfg" in config.cfg.