Wow you guys spend a lot of money for nothing. I dry start my jet skis & rev them till water stops coming out. Pull the battery & done. Sometimes I fog it, sometimes I don't. Sometimes I pull the plug & put oil in the cylinder, sometimes I don't. I've never had a problem. I always run Stabil into the gas.
My inboard is almost as simple. Drain the block, water pump & exhaust manifolds. Pull the thermostat & dump some rv antifreeze in till it starts to drain out the block drains. Pull the battery & done.