building a supergun stick, help?

So I'm getting ready to build myself another stick, since I have some wood and happ parts to spare.
So I was wondering where I could get the layout information for the spacing of the stick and buttons.
Ideally, I'd Like to use the us parts and set it up using the sega 6-button layout, but really anything will work.

If it helps, I've got happ super joysticks and happ competition buttons.

http://www.slagcoin.com/joystick/layout.html
http://www.slagcoin.com/joystick/mounting_layering.html

Regards.