Honestly i wouldnt go with a 3 inch because you arent always riding in powder. Sometimes everywhere you go is hardpack and really unless you are a hardcore shoot climber do you really need that 3 incher with a boosted sled especially when you could be running a 174 2.25 and not worry about destroying your hifax on a long trip. If i was to do it I would most likely just go boost with 174 2.25 or no boost and 174 2.25 good luck either or it should work out.
I rode Nm's Pro for a day with a 3"X162 with HM turbo and Racers Edge skid. It worked wicked, I personally wouldn't run anything but a 3" on a boosted sled. My $0.02.
Nice set up, pics look good. I run the BD kit and wonder if the avid case will still allow enough room for the tunnel dump exhaust ?