There's one on eBay: https://www.ebay.com/itm/1977-1978-...D-II-Wiper-Delay-Switch-Assembly/254818401700 It's a bit more expensive but it will be a direct fit.
Actually I had just messaged the guy about that same switch. I'm thinking about buying it if I have to. I have hit upon another guy about an hour from me who is selling Ranchero parts and says he might have the switch I need. If so then I wont have to pay shipping. He might just also have my hood I need. All about an hour and a half from me.