Actually, the Sawyer Goldenglass layup was Kevlar reinforced fiberglass:
The simple chip in the gel coat could be filled in with many things including polyester gel coat repair putty, epoxy, or Bondo. Even if you used green gel coat repair material you would not get a color match, so I would just fill it it, sand it smooth and flush, and paint it with whatever paint you could find that gave a reasonable color match, perhaps an auto touch up paint.
As for the aluminum seat hanger that supports the front sliding seat that is tearing, you definitely want to do something about that before it gets worse. My thought is to get one or more steel small steel L brackets and trim them to fit the vertical and horizontal dimensions of the aluminum hanger bracket. Bang the torn end of the hanger bracket back into proper position. Drill off the heads of the pop rivets securing the torn end of the hanger and put the steel L bracket beneath the hanger so that the horizontal portion of the L bracket supported the underside of the torn hanger. Drill a hole or holes through the vertical portion of the L bracket for a new rivet or rivets. Use steel pop rivets to replace the original aluminum ones.
If you are good using epoxy and repair fabrics you could probably build up some type of support shelf beneath the torn end of the bracket and 'glass it in to the side of the hull and that would look a bit neater.