It's hidden in an ad listing many items for sale, but there is a Bernina 730 for sale in Madison for, I believe, $175. She said it was her mother's and she thinks it has all the parts. Comes with green carry case. If I lived closer, I'd get it myself!
If you have trouble finding it, (I think it only says Bernina sewing machine), pm me and I'll give you her phone number.