If you buy the pickups new they should come with a wiring diagram. Otherwise, there are lots of sites you can look through for them. I can find some links if you need them. :)

It's not too difficult to replace pickups. If you know how to solder without making a mess, then you should be fine. Sometimes it's handy to have a helper to hold wires in place and such. Oh, and make sure you have a decent soldering iron, too. The cheap ones are horrible to use. You hold them on the solder for ages before it gets hot enough and then, all of a sudden, the solder has melted off in the blink of an eye. :mad:

By the way, are you sure you want Lace Sensors? They don't quite sound like regular single coil pickups. If that's the sound you're after, then go for it, but if you're expecting true single coil tone without the noise, then you won't get it. Actually, Kinman pickups are good noiseless pickups, though they're expensive and they don't sound like a true single coil either.