OK, KISS..!! how about a rather simple response to all the gear related problems..  Lights -relays-pump etc..   Fly A/C first and foremost, let someone know your problem and intentions, then,turn off the MASTER Switch, it should quiet all cept power to the master relay..  then you have time to trouble shoot and collect your thoughts..Now, you are not worried about running intermittant equipment etc, however wired.     So, your gear lights are out, but at slow airspeeds I get the reassuring thump of the mains and nose locking overcenter; and reach for your hand held radio..    Had the nose gear spring loaded actuator stem break  in flight over LGB a while back,  jacking around with the A/C was no help until we slowed down to near stall speed and the pump pressure overcame the air load and we got three green..  Sure, this wasn't an electrical problem, but having time to work through all the scenarios was a hellof a lot better some of the other alternatives... Ds