I know I'm digging up an old thread, but thought I'd share my lighting setup since others have shown their methods.
Much like AusTac I have a Lockaway (Hyskor) and it's as dark as a dogs guts. Where it is set up in the room no light gets inside. That's a photo, no flash of what I was dealing with.
So I got a roll of 5050 White LEDs, some insulated 2 core wire, a 2.1mm surface mount power jack, a small 12v PIR sensor and the usual selection of solder and heat shrink you'd need for something like this.
First step was to drill a hole for the power jack. Not surprisingly, a pain in the ass.
Inside
And with the carpet down, it's pretty unobtrusive.
All the rest of the wiring is hidden under the carpet.
This is the PIR sensor. It just sits under the pistol compartment, you can't even see it when standing in front of the open safe.
Other than that, just cut and soldered 3 strips for the main area and one small one for the pistol compartment. Ran the wires, stuck the LED strips into position and this is the end result.
Realistically, less than $30 in parts, and a few hours. Pretty happy with the results. Turns itself on when you open the door, and is on a 3 min timer. You can see it switch off with the door closed.