That's good enough, you got the basics. I can work you through it.

First decision: Scrog or regular grow ? This will make a big difference in the construction techniques.
I lean heavily towards SCROG or plants trained with a flat growing surface.

If you go SCROG you build your lights where they are spread out. If you are growing taller plants, you go with a "Brick" type design like Procyn where you got a lot of wattage in a small area.