Sorry about the broken link, ebay shortened it for me.
I bought a tool kit from iFixIt and used the blue separators to separate the housing edges from the screen and then stuck a few guitar picks in the spaces. Do this all the way around and the phone core just pops right out. It looks exactly like this:
Then the core just snaps right into the new housing.
The new housing is ever so slightly darker/more matte than the original one, but I think that might just be due to wear. I actually like it better darker.
As for the pics, I didn't take any during the actual procedure, just of the parts.
LEFT = NEW / RIGHT = OLD
TOP = NEW / BOTTOM = OLD
LG Nexus 4 - CM 10.2
ASUS Nexus 7 LTE - Stock
Samsung Nexus 10 - CM 10.2