AHK Magriel's M on Stars

[NogbadTheBad]

Hi, Im just getting to grips with AHK, it's awesome.
Neways I thought as an exercise I'd like to make a script that calculates your M (Your stack divided by the sum of the blinds and the antes) and displays it in a little box on HUD.
I dont know where to start! Is this far too complicated?
Also has anyone made any scripts for Pacific?
Any help much appreciated!