Not sure where you are but they are quite a few "derelict" P 16's at our local marina- Many of which are brand new but old and weathered. I can inquire of a mast if you want- Also a friend of mine in the southern part of AR has a P 16 w/ "soft" hulls- Maybe he would want your hulls or you his mast/boat??
E-mail me if interested-
Kirt