As far as soda blasting the boat I had the bottom of my boat soda blasted and then re gel coated turned out good and really cleaned it up a lot but it did cause pitting of the bottom which needed some filling in before my re gel coating job. If it was me I would only do the Bottom and the Bilge area.
Before
In the middle
After
FellowShip
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My motto: Just for the Grins