RE: 1970's? Lindburgh Chris Craft Constellation
This kit is long out of production. Rumored to have the same hull as the Lindberg 1/32 PT-109. The Constellation appears on Ebay from time to time and I believe it was first introduced in the '50s.
I would try finding an alternative source for parts in the same scale. Perhaps Craft House (the owner of Lindberg) can help with replacement parts or maybe they will put it into production again. They should along with the Sport Fisherman.
Great pics by the way. Please post some more as this is a very rare subject. Would like to see your running gear, for instance.
-Harq