That sounds like a very nice finished product, my only suggestion would be to skip the Dragon. They are very loud and an AR-10 doesn't kick too bad. I've owned a few 308 semi's now and usually just end up buying a nice flash hider. If you're hunting with it one or two slightly harder kicks in the shoulder will be worth not having that muzzle blast from the Dragon.
Be sure to post some pics once you have it all together.
The Dragon is already on in the pics above, I didn't notice any more blast or loudness than the stock MB. It does keep the muzzle rise down and shoot slightly softer, but IMO it's not worth spending extra for. It was sitting in my parts pile and works a bit better, that's all. I've used it on my M305 Blackfeather and XCR-M.




















































