Ally welder needed

hey fellas any of you guys know how to ally weld, i got a small hairline crack about 6 inches in the keel towards the front of the bow, its just enough to let in say 10 litres throughout a days fishing, i would like to get it fixed before exxy. hopefully for a small fee cash or carton, or does anyone know of someone im located SOR Gosnells
cheers fellas