The ones I haven't drawn up yet...

Actually, there are no Calypso plans I'm aware of so I will draw some up.
This is a Blue Bird (World Models) kit. For what its worth, some cores, some fuse sides and some badly warped glass, ply and balsa. Considering its a ~27 year old kit, I can't complain. Back in the day it would have been something - today, better off laser cutting fresh cores and wood. I was interested in your mold material in order to make one for this cowl. Hopefully, I'll get around to it before putting it in service.
David.