Cost is not looking good, it's also not set up yet. I am always very pressed for time, so I'm hiring out some of the work to my local PE shop. Being a unique kind of customer, they don't have good mathematical pricing for me, so I will have to explain my case to them, tell them how much money I can afford to pay them, and see if they will accept for the deal to fly. I really don't want to direct sell all these, so I'm trying to keep "dealer money" in there.
So I'm going to try to gang them up, about six kits on one "sheet" so their people have less handling to do. Their machine runs 30" wide by continuous feed, which means I should technically get the same price for the spraying, even using a wider sheet. I can fit all the pieces into the lower sized German tariff, and still get two up on their machine using wider, shorter arrangements. This also means there will probably be just one kit. This is because the three deck pieces arrange into a nice rectangle, but when you add in the conning tower, there is then created a nice space for the drainage hole plates on the workpiece, so there might as well be just one kit. We'll see.
All that long story to say I don't know, but I'm going to try to make them as cheaply as I can. Half the price means five times the sales, so we are all on the same side here, in a sense.