My knowledge is limited. All I can tell you is that I picked up an old Tyne Fiberglass hull kayak for 20 bucks in Boulder. Never had it in the water, just hanging in my basement waiting for the day Gerri clears her "woman stuff" out of my man space.
IIRC it is between 15 and 16 feet long with clean, straight lines, wide and low. It has adjustable foot pegs down in the leg space but at full adjustment they still squink my legs up. The seat back is fiberglass and very uncomfortable. It's something that needs work if I keep it. The hull is open, no compartments, and has 2 inflatable bags that fit bow and stern.
I researched it and best I can tell it is early 70's tech. Which translates to drowning.