If you go down to the bottom of the forums you will find an alphabetic row of boat names.Winner Boats features there.It has for 4 pages of threads.That is probably your best chance to get some idea about this type of boat.
If I remember correctly, they used to advertise that there was no wood in the hull. A fiberglass egg crate form was used under the floor. To demonstrate their strength, winner used to lift them up to a couple of hunderd feet with a helicopter then drop them into the water. --All kinds of goofy stuff in the '70s--Whaler used to cut a hull in half on the water and run the back half with an engine.