65 Dart Wiper Switch Breaker

Hey guys, I have a 65 Dart that recently had the wipers crap out. I've been doing a lot of reading and pulled the switch apart. My best guess is the circuit breaker in the switch is toast. The small tab snapped off when I separated the switch halves. Is there anywhere I can get just a replacement metal breaker, can I make one, or am I looking for a new switch? Either way, I need it fixed ASAP. It's my DD and it always rains here, aside from this weekend. Thanks!

Ryan