If you just want to sew with it and it doesn't matter that the motor is not an original FW, you can get a new motor with an electronic foot control and power cord for $33 -
http://shop.sew-classic.com/Motor-Ki...l-SCEFM190.htm
These foot controls are a lot nicer to operate than the original bakelite button controllers - they don't get hot and they operate more smoothly.
I've bought several motors and lots of other stuff from Jenny and she's always fast to ship and if I'm making a mistake in what I'm ordering, she'll take the time to ensure that I'm ordering the right stuff for my project. She's saved me time, money and disappointment on several occasions.