:D :D :mrgreen: :D Wow :D :mrgreen: What a treasure! I have one and love it. If you can't find a foot controller, I have a contact. PM me and I will give it to you. You can even get a replacement instruction book, not original, a copy. If the feed dogs aren't good, you may be able to get replacements for those and even the tension assembly.
If you have a local Singer dealer within 50 miles, it would be worthwhile to contact them for help. :D