Weeeellllllllll, we scored a Singer Golden Touch & Sew on GW. Mizkaki says it's one of the 700 series so it should work with the white cams and attachments to make chain stitches. We shall see when it arrives.
Hopefully the gears will be in good shape and I won't have to mess with them any time soon. ( I ain't holding my breath for that though.)
If this machine works I will have another variation of sewing types to learn on.
If not, then I will have another variation of broken machine to learn how to fix.
Joe