They occasionally show up on eBay; haven't seen one in the monthly bulletin for some time now. The recent eBay items needed re-wiring. Apparently the company that built them went cheap as they figured these would not last long.
Prices currently asked on eBay for them are way over priced in my opinion.
Best suggestion is to hit the KFOCI National Conventions; some members disposing of their collections bring things like this to sell to other members so they know they get good homes.