Line Lock Wiring
Since you said the Prev. owner ripped the wiring out I would test it 1st before runnign the wiring inside and buying anything else.
You can test to see if the Line Lock still works by taking the wiring as it is and stripping the ends. Then use a 9.6v to 18v Drill battery. Just hook one end to + the other to -. It should make a Clicking Noise and you should feel the "Thunk" of the Selonoid Activating.

