reckon a couple of hours for changing wishbones. Bit of a pig to do first time around, getting the peg in the hole.
Toe (toe-in, toe-out) is the angle the wheels make when viewed from above. Zero toe, the wheels will both be dead straight pointing ahead. Toe-in, both wheels are both pointing to a point in front of you. Toe-out pointing to a point behind you.
Test to see if there is any play in the wheels first. If not have a 4 wheel alignment done £30, if there is then get the wishbnes done. Time, depends on how good you are with spanners. I done them on my ibiza that i had before which was a bit of a *****, the driveshafts had to come out of the hub, and the engine off the mounts and jacked up to get the bolt off out of the carrier. But still only 3 hours, and i didnt have a clue what i was doing to be honest.