Brian,
Another comment..this time hopefully helpful. You are on the right track with the oil in the cylinders. The starter has a huge amount of oink in it. I would install a new battery and use the starter to spin the rig. Do this with the plugs out and a quality motor oil in the cylinders.
As I said in my earlier post, it would be hard to believe that this engine could be "frozen" after such a short time in a mild environment. Strange stuff does happen though, so if you use the starter to attempt to spin the motor, be on high alert for anything weird.
Stuart
