Never done it nor seen anyone do it, but what you might want to do is check out some forums on this, i think retrofitsource is one of them, they'll be able to better guide you on how to go about this, maybe even better ways of going about it.
Got the HID light yesterday and installed it last night. It took me almost 2 hours to complete. It is kinda plug and play but getting the wires through the bulb back cover took some time. I had to remove the HID wires from the ballast connector to fit the hole in the back cover. That was the easy part.
Fitting all the wires and ballast in the headlight bucket that took a long time. I had to remove the plastic harness that separate the wires from the back of the bulb. It took a lot of pushing and moving to get it all in but I got it all in there. I do recommend before tightening the screw to test the light again. The pushing and relocating disconnected the ballast connector and I had to do it again when the HID light would not turn on. The high beam would turn on even if the connector to the ballast is disconnect.
Got the pictures but I'm still not done yet. I think it's too blinding. There is a metal cover in the HID bulb but in the stock setup it's positioned under the bulb. I rotated the whole headlight to get the metal to the top and it looks better but I can't test it outside since it is snowing. The first picture is what I removed to get all the wires and ballast to fit inside.
There is also a small bulb in the headlight that I want to disconnect but I'm not sure what it's purpose.