Correct spotlights and correct halogen lights for 86 DPS?

[ChrisL]

Getting closer to the point in the DPS restoration where I will start needing equipment, and I'd like to know exactly what I need. I'm not familiar with law-enforcement at all, so what exactly do I need to have a correct spotlight for it? I see 6" lights, 5" lights, K length shafts, different handles... Does anyone know exactly what I need so that I can ask and make an informed purchase?

Secondly, I believe I need two red and two blue SHO-ME halogens for the car. Is this correct? And are they available new?

Thank you VERY MUCH in advance, any help is greatly appreciated.