Found a drop-in replacement on eBay. Installed and verified working.
Passing this along to anyone else who may need one, as I had a hard time tracking one down. $5.49!! I should have bought a spare.
BLACK-ON-OFF-MINI-SWITCH-12V-WITH-RED-LIGHT-3-PRONG-RV-ROCKER, Seller cmlsurpluscindy
http://www.ebay.com/itm/351711233441?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
Thanks for posting this - great find at a great price.