The best paint stripper to use is a high organic vapour paint stripper like Nitromors original containing Methylene Chloride. Do not use any stripper containing sodium hydroxide (caustic soda) because that will attack the zinc components and dissolve it.
I fear that this warning may have arrived too late because I believe that all paste paint strippers that I know of contain sodium hydroxide...
Since Konishi mainly uses zinc for the hull and larger components you might be able to restore the surface and remove the oxide coating (off-white powder) using very fine wet & dry paper and a fibreglass pencil followed by the use of an etch-primer paint (which often contains zinc compounds for the pigment and does not cause further corrosion of the metal).