Och ja, it's a goddamn quest (to quote Chevy Chase). But that's the fun of it. If the eBay stuff isn't right, search your area for outboard boneyards. I've had favorite sources in every area of the country in which we lived -- have to admit that gets a little more limited as I've gotten older. I miss it. (Call American Outboards on the eastern shore of Maryland, and ask for Dora. And if you get into that area, stop in and get into the acres of "back stock".)