Some times the best of us end up with a machine for parts - you might be able to find a Japanese 15 clone of a Singer 15 that will fit your table and the electric - too bad you don't live down the road - we could try one out. Too bad shipping would cost more than the machine. There is a lot of info on QB about the 15 clones and I will be posting more in a while. I don't know how good you are at searching but if you go to the top of this page there is a search place - type in Japanese 15 clone and see what you find. Here is a start.
http://www.quiltingboard.com/picture...p-t164361.html fortunately the 15 clones are fairly inexpensive. They are a nice straight stitch machine. People love them for FM.