Randy, You need to fog everything with oil after you have the boat winterized.... Then the boat needs to be stored in a controlled atmosphere away from from any sea /salt air.....
The boat should be completely covered to keep out dirt and dust as much as possible.
If your going to store for a long time you also need to think about the oiling system for the motors... your going to have to spend a few hundred dollars for each engine to have pressurized oil systems installed so that you dont have a dry start when you revive the engines --- very important !!
Even after all that you may still have problems with gaskets and seals ,you also need to check the transmissions :electric gauges may also give you some problems.
What ever you decide to do ----- do not do it Half-Fast !!\