Spares/Repair Pfaff 1222 sewing machine (Pant SY10)

Vintage sewing machine. I got it free on fb marketplace. Feed dogs not working (fabric is not fed through under the needle)

I called the sewing machine repair shop on Wyle Cop a few months ago and the guy said he knew exactly what was wrong with it but wasn't sure if he could get the part, and to call back another time.

I haven't had a chance to follow up and have another machine I can use so just want to get the space back.