Yes, you can find the normal HUDs in the "setuplevel.fpi" script that is found in the "languagebank/<language>/gamebank/mygame" folder.
Look at how the normal HUDs are made and go off of those to make your own.
Or, you could download the Official Community Guide and read one of the scripting tutorials I made on changing the HUD for your game.
The one and only,
Those who live in the past, are destined to insanity. Those who live only for the future, will be slaves to their ambitions.
Those who live in the moment... only they, are truly happy.