I wanted a Super-Light weight helmet for my helmet cam and misc use and came up with this guy. Bought a cheapo Small CVC helmet at the surplus store for $20 and then got a SKYDEX PASGT pad conversion kit from Safety Systems Corp. It came with an alright chinstrap, but I ended up using the one I took off my main MICH. Drilling 2 holes in the back was pretty easy, but hard part was getting the loop-velcro-like pad inside the CVC shell off. Otherwise the SSC Skydex pack had everything I needed: Straps, pads, screws, velcro, and even alchol wipes for prep.
At $75ish mil price this is a much more affordable package than the Oregon pads and I'll note the Skydex wont harden in the cold! I started with size 6 Pads since it was a small helmet, but later got a size 8 pad pack and like it better.
Sorry for the crappy first pic, it is how it comes packaged.