That boat is very worn. I would clean the topside in a few spots to inspect the material to see 1.) if it cleans up and 2.) look for UV degradation. If the material is rough and scaly like a fish/alligator/snake, then the material is starting to break down...the boat would be junk.
If you buy it, no matter what, it needs about 5-10 hours of work with cleaning / gluing to make it look seaworthy it seems. Inspect the lower part of the transom for softness too, especially around corners, screws, and drains.