I don't want to burst your bubble BUT the gears that run the shuttle are not available for this machine & haven't been for at least 34 yrs that I know of,alot of the other parts will interchange, I just thought I'd mention this before you dump much $$ into this machine.
These gears are similar to the ones in the 29K53,55 & 56 which you might want to buy for parts if you see any.
They have real fine teeth on them & break pretty easy.We do have most other parts in stock.