If you really have to have one, then just bolt (or even zip tie) an ATV reverse light like this one:
http://www.warn.com/atv/lights/ATV-BackUpLight.shtml to either your rear bumper or quickjack and then remove it after your inspection. The reverse switch on the more modern transmissions, like the TKO, are as simple as it gets and you can wire it up in a few minutes.