I don't have any pics of the overhead handy, but I currently have mine out to fab in a clinometer...it's a piece of cake to take out; two screws, pull the front down a bit and slide toward the windshield (it's got two hooks toward the rear that hook above the headliner). The A-pillar trim comes off simply by removing the grab handles.
I found some very clean little toggle switches at Radio Shack...
