1964 it a bit behind my time in the boating world, that said you may get lucky with some of the more seasoned members here...
We used to have the MMB/MMI magazine website which could provide you wi thy back orders and plans until more recently...
Sadly that site is also gone... good news ( somewhat) a lot of the plans can be found from
Just have a search through the boat plans available ( it’s pretty much everything the old site had)
If that sites no good... try here... this one prob requires a phone call to the publisher...
Other options on a quick search... just google the boat plan I got several hits including eBay!
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