Well you don’t know what resin was used in the construction so if you get it you should use epoxy which will bind to either polyester or vinyl-ester resins. You would need a quart of epoxy with the appropriate amount of hardener and mini-pumps, say 75-80 dollars. Probably also a fair bit of sandpaper and incidental supplies like masking tape, paper towels, mixing cups, squeeges, disposable gloves, solvents, etc. Some of that stuff you might already have.
Good marine paint like Interlux Brightside will probably set you back over $50 a quart with shipping and you will need foam brushes and rollers if you don’t have them. With that very high, peaked foredeck you probably should put a larger float bag in there. A 30" 3D end bag designed for a tandem canoe would probably work. That would cost another $50 or more.
I would go look at it. If there are no obvious defects press in on the deck and hull all around. If you start to hear cracking noises walk away. My other concerns would be whether the stern bulkhead and that somewhat funky rear hatch cover are reasonably watertight. You could waterproof the bulkhead by running a fillet of thickened epoxy around the edges. The hatch doesn’t need to be absolutely watertight but you don’t want a lot of water leaking into that stern compartment.
To get that boat seaworthy is probably going to require an investment of 250-300 dollars and quite a bit of time. And my experience has been that it always costs a little more and takes a little longer than your original estimate, so take it from there.