Winterizing: blow-out vs antifreeze for longer term storage?

Other things to consider when preparing for long term storage. remove the battery, and place the trailer on blocks with the tires off the ground, mouse proof it as best you can, leave the refer door open, wash any and all cloth items prior to storage, and remove all personal items.

We live in Oak Harbor, If it is near, we'd check on it once in a while if you like. ( no charge )