check out these epoxy repair pics

howzit fellow heads?
i've always only surfed fiberglass boards, but recently came across this gem epoxy board at a garage sale. talked him from 50 bucks down to 35 bucks, and here's the damage: two fractures, one on the side of the rail in the middle of the board, the other on the side of the rail by the nose. it appears that the previous owner attempted some kind of spackle repair job of sorts (looks like concrete) but it has mostly worn away, revealing the cracks. other than these two spots this board seems to be in otherwise good shape.
i picked up this epoxy repair kit (see pics) for cheap, and since the damage seems pretty substantial i wonder if it is good enough to fix such a big crack. i really want to try and fix it just for a beater extra board...can it be fixed?
what should i do with this board?
i've always only surfed fiberglass boards, but recently came across this gem epoxy board at a garage sale. talked him from 50 bucks down to 35 bucks, and here's the damage: two fractures, one on the side of the rail in the middle of the board, the other on the side of the rail by the nose. it appears that the previous owner attempted some kind of spackle repair job of sorts (looks like concrete) but it has mostly worn away, revealing the cracks. other than these two spots this board seems to be in otherwise good shape.
i picked up this epoxy repair kit (see pics) for cheap, and since the damage seems pretty substantial i wonder if it is good enough to fix such a big crack. i really want to try and fix it just for a beater extra board...can it be fixed?
what should i do with this board?