Well with some help from a few good friends removing the engine from the boat was not that difficult. Have the right tools on hand made it pretty quick (about an hour). A few tips for folks in the future:
1) Because of the location of the attachment points on the engine for lifting the engine wants to roll to the left (when looking at the engine). This makes the engine get hung up on the front motor mounts which are just two long threaded rods that fit into very tight fitting holes on the engine. To solve this we had one person push DOWN on the right side of the engine while another person used a pry bar to lift UP on the left side. This process worked together so the engine would come up nice and straight and over the mounts.
2) My setup (beam 134" from the ground) was about the minimum height I would build this setup again to raise the engine high enough to get it out of the boat. I had about 3" of extra "lift" left in the chain hoist above what I needed to get the bottom of the oil pan over the edge in the boat. I was proud I did all the math right the first time
3) To attach the engine to an engine stand means you need to remove the starter, flywheel housing, flywheel, flywheel cover and flywheel coupling. Pretty much everything that would be where the transmission would attach in a regular car engine. This was more than I was initially expecting but was not hard at all.
I have a picture of my engine swinging in the breeze and I'll post it later.