Some thoughts, possibly dumb ideas but I'll throw them out there.
first, everybody wants stainless steel, but stainless steel in aluminum is not a great combination. There are various forms of "zinc flake" finishes out there for fasteners that have really high corrosion resistance. I've been using fasteners with zinc flake finishes on my skis but I'm a freshwater guy (and none of them have been together for more than a season or two) so I couldn't say anything about how they work in salt water, but seems like it would be worth looking into, you could have much higher strength steel fasteners and much less likely to sieze in the aluminum hole. Bonus is that steel stuff sticks to a magnet if you drop it in the hull.
Geomet/Dacromet, Magni, Doerken are a few of them, they are also sometimes called "dip spin" finishes.
Second, you really only need the one side, no? Could sell a "half girdle" hardware set to save some dough. That's not great from the perspective of the guy selling things (selling less), but maybe it kind of is because you could sell a half girdle hardware set for a lot less than a full girdle from ADA I would imagine, so that motivates people to buy from you rather than straight from ADA for the cheapskates (such as myself, I have a single girdled hardware kit split between two skis currently). Maybe with the change in volume there is not really any savings for having half as many studs, again I dunno.
