I'm also worried about the "turn the lights off" thing. On the one hand, it's an obvious sign that, for all practical purposes, the runway is not there anymore. At least, not there for me to land on. On the other hand, as said before, it will be a major disorientating factor.
Isn't there some middle ground. E.g. turning the center/edge lights off, but leave the end markings, the taxiways and the PAPI on? That should be enough not to get disoriented. Or just flash them on and off?
Obviously this'll be airport specific. I don't know how your electric circuits are wired and what the possibilities are.