Brownells carries the Kuhnhausen books. I have several, and they are worth the money.
I can't imagine needing to take the 1100 bolt down unless you have a broken firing pin. You can reach virtually everything on it with a can of Gunscrubber or Brakleen. Stock removal really requires a special socket that Brownells sells. You can get at the nut that holds the stock on with a long screwdriver, but the socket wrench keeps you on the head of the nut and avoids a) a split stock and b) a broken nut. The nut is sintered metal and is somewhat brittle, and it is torqued on at the factory by a gorilla with an air wrench. Get the socket, and you won't regret it.