Given that your boat:
Originally Posted by Jonny88
has had some knocks in it's time and as a result it has some pretty deep gouges, scratches and cracks in the gelcoat.
I would say it is time for putty and paint.
The process is easy for the experienced with the sanders and such on hand and not too expensive for a small boat.
The first timer will face the learning curve and cost of tooling up for the job.
Grind out all cracks- they will print through otherwise.
Fill all defects with good quality fairing putty, sand out and epoxy prime the hull.
Go over the hull with spot filler, sand out the primer to 320 or so and shoot.
If you are around any marinas which paint, sometimes a painter will contract for the topcoat shoot on a prepped hull.
Sanding swirls, missed pinholes, chips etc will be 'on you'...
Yes- use AwlGrip or an equivalent LP paint. The longevity and quality of finish are worth the price of admission.