Spark,
I've ordered spool pins from Sew Classic. I got the threaded type for my Singer 201 (metal) and I purchased the plastic or nylon spool pins for my Singer 403. Sew-Classic also has the "tap-in" type (metal). So, I suspect you can get what you need from Sew-Classic. They're not expensive at all, so I think I'd order them. I'm also sure there are other suppliers than Sew-Classic -- they're just the one I've dealt with, and the stuff is generally received in less than a week, unless it is back-ordered. Hope you can get what you need. I only have a couple of wooden spools for mine, but mymachine does have a winder so that I can re-wind the spools -- hope yours does, too.
Enjoy it!
Jeanette