Thank you to everyone for the comments and insights. Went "machine hunting" yesterday with hubby, but only found straight stitch machines (???). I can usually find a few zigzag machines, but not yesterday. Received a call last night from a friend re: a Singer in the 400 series that she is getting rid of. She said it was a 404 and it takes cams, but I thought the 404 was a straight stitch only machine. Am I wrong? I am guessing she has a 401 or 403, but won't know until I pick it up later this week. The price is right: FREE! It is in a cabinet and has the cams, etc. with it.
Seems like I just can't break out of the Singer family ( 3 Fw's, 201 hand crank, 301, 2 66-1's, 2 15-91's (my favorite go to machine of all time!))... And all of them are straight stitch! I need a zigzag! I have two modern Janome machines with lots of stitches, but there is just something more satisfying about using a vintage machine. Why did I ever give away my 1970 Kenmore....
Thanks again for everyone's help!!!!