I've seen one of these "Tramps" up close. My son paddled it for a few days and suffered. It is a dog.
That's what I suspected (usually the case with very old fiberglass kayaks) - dated, inefficient design. Didn't want to say it since never saw this particular model.
Wide beam, dull bow. On one of the photos I see non-adjustable seat, and both seats look poor to me. Built-in rudder has same pedal post as in foldable Klepper - in the center, inconvenient to load the gear fore of the pedals. The rudder blade itself is ancient "barn door" shape, nobody is using these blades on hardshells in the last 15-17 years. No hatches - which affects both camping comfort and safety (bulkheads are moved closer to bow and stern ends). No deck rigging.
One guy is asking $150, another one - $850. I don't know if it's worth something for collectors, but after looking at the photos I agree with Dave - as a vessel, it's not worth much - may be $100, and only for short and easy lake/river trips. For practical use there are 8-12 years old fiberglass kayaks on the market from $600 or so, they are better made (but condition should be checked, of course).