TOPIC: 14 ft GW invader identification needed

Hello to All!
I know that there are a few GW Invader guru’s here
Any info would be greatly appreciated
I am bringing an old 14 ft back to life.
This one that i have , doesn't have a balsa core.
And the cockpit is different than any that i have seen here, with the exception of a 1972 that i saw while researching.
It was blue metal flake when it was made.

I am trying to find out why this one is so different
And what year it could possibly be.
I had read a story about the infamous 12 of these that were given away before the molds were crushed.
There are absolutely no hull numbers on this boat
It was laid up pretty light but solid where it counts
Looks like the transom is 1/4 plywood sandwiched between 2 pieces of 3/4.
The boat has a stringer system in it made of solid pine. the floor was glued in and glassed in around the edges
I attached some pictures .
The boat wasn't taken apart before i got it.