I believe the real pickups are standard, and can be switched out with any after market pickups,
but there are other wires in the guitar and if you hit a ribbon cable with a hot soldering iron you will most likely have a problem.
If you are not very comfortable, doing the soldering in close quarters I would not attempt it.
On the other hand many pro guitar techs have the experience and confidence, and will probably do the install at under 100 bucks for just one pickup.