Anodes work when you're engine is in the water, if you don't put it in the water you won't need the anodes, also the little one under the trim plate, if it has a Skegness on it, will adjust you're steering track.
Paint wise, use etch primer as some bits are Ali and the primer will stick on both, I've just used two pack, base coat and clear lacquer on the MacRib boat with fairly good results
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