The drilling is just to locate and secure the ballasts, the rest of it is purely plug and play.
ie remove the bulb, connect the wiring from the bulb to the ballast, then the other cable from the ballast to the new HID, and then fit that in the headlight, and done.
Or something along those lines.
If Jim will
help you, then all the better, as its nice to have someone to stand over and watch, and
help out.
It'll also give you practice in removing the bumper, which is literally a few minute job.