Nailbombs sound fantastic in SG's. Tim usually recommends going two ways when choosing pickups for SG's, either go low output like a mule or Stormy Monday, or go high like a Nailbomb or warpig etc.
As for the neck the Mule/Stormy neck would sit well, it has a DC of 7k, but we can drop it a bit to get 6.8.
It all depends on what you want tone wise.