When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
The only places I've bought weird parts like that are eBay; you can try looking on car-part.com but I've often found that it's not very good for weird bits like this.
Good luck!
I just ran a search and there actually were some reasonable options on car-part.com (though none with the full switch you're looking for).
So if I were you I'd bookmark the search page and check on it once a week until you get what you want for a reasonable price.