Yes you do. wheel off ball joint nuts off pop the ball joints, catching the disk/hub and balance it on something strong, it you let it dangle you'll damage something. you might have to pull the speedo cable out first. undo arm pinch bolts and pull the lower one out The upper one needs lump hammering out as it rests on the bump stop arm. When you replace, take the upper bump stop off first to make it easier, but put it back later note the camber setting first (notch in eccentric adjuster).
Concur with all the comments made Fix it if you can otherwise use word of mouth to try n find a gud trades person. BTW anyone know a decent roofer in essex