If the head and handle are separated, you can repair it like the first two people said. If it is damaged, but in one piece, Nurmof (in the Dwarven Mines) will fix it.
Flesh crawlers (lvl 35) in the Stronghold of Security, under the Barbarian Village. They are never crowded, and there are plenty of them so, you always have something to fight.
Flesh crawlers (level 28-35 I think) in the Stronghold of Security. There are lots of them in single rooms, so you never run out, and they are never crowded.
Banned for assuming that I only assumed, and didn't know, that he assumed that I was a Bob fan. Gah. Banned for even talking about WoW on a RS forum. Shame on you.
At 60 woodcutting, yews would take a looong time. They're slow enough at 70. Your highscores suggest that your fishing level is below 55, so swordfish would also be extremely slow. At 65 mining, iron mining would probably be the best way. Edit -- Haven't yew prices dropped to around 250ea?