Your machine takes "C" type cams. Kenmore made different series of machines and there are other types of cams that won't fit but the cams themselves will look different. The list in your book are the cams that originally came with the machine, but others of the C type should work. They will be the kind you find in the green boxed sets and come in several colors--light green, dark green, orange and gray (I think). A set of 30 is the largest I've seen but I think there might be more than that. The black cam in your machine is I believe the zigzag cam which would have come installed in the machine and it won't zigzag without it.
A picture of those cams was posted by Mrs. SewNSew on this thread:
http://www.quiltingboard.com/vintage...t252968-3.html
Check thrift stores first as that's probably the best price you'll find, and then e-bay. There is also shopgoodwill.com but bidding on that site has frequently become rather ridiculous for attachments. Often you can look for sets that will include the pattern cams, buttonholers and feet/attachments. You'll want to note if your machine is low shank or super-high shank when browsing.
Good luck.