Removing boat from trailer, dry land.
 

The previous owner antifouled the bottom poorly.
I'm being kind.
I figure he just painted over the growth. Many times.
It's brutal.
Sand blaster coming.
I've got concrete blocks set up to hold it, with 6x6 wood as an upper.Probably a square foot of contact.
I'm gonna place them on the hull, at the transom, on the outside stringers.
Can I jack the hull up from the middle of transom, on the V?
I'm going to lift the front with a sling, lift with my loader or an excavator.Pull the trailer out.
Wood blocks under the keel.
Good plan?