$250 obo
As far as I can tell it's a .40. The documentation in the box does not say what size. One page shows a view of it and it says "40 & 60" on the bottom (you can see it in the photos). The front of the box has hand written in marker "Wing Ding 40". There are some factory labels on...
Figured out the photos! If I don't get interest on here this will end up on E-Bay. I also have a fiberglass Dumas Donzi Z-65 that is unbuilt and another boat which I'd have to go look at because I can't remember the name (a fiberglass tunnel hull racer). Here's the Wing Ding kit: