Looking for 20 Seafari from Childhood

[Bushwacker]

Do you know what year it was made? The one in Big Shrimpin's picture would have to be older than a 72, because the '72 deck cap/cabin top next to cabin door comes down at least 6-8" and goes straight across the bulkhead, not curved like the one in Big's photo, which I'm guessing is a 70 or 71.