Quiltingboard Forums - Searching for featherweight parts

I just purchased not one but TWO 1951 (Centennial) Singer 221 Featherweight machines. I probably paid too much for them since neither one was in using condition on purchase but I thought they could both be brought back to life. If not, I figured on pirating parts from one to repair the other. I have never owned a featherweight nor repaired/restored any sewing machine before and thought it would be a fun thing to learn. I did internet searches for directions and then took both machines apart and cleaned/greased/oiled them. Both are now gleaming and purring out perfect seams. However, there are some broken parts I need to replace and I haven't found all of them yet. Both machines needed new feet--that was easy. One needs a new toggle switch for the light--turning that light on and off with a screwdriver works but will get annoying after a while. The other one needs a new thread spindle which I haven't found yet. In the meantime a Q-tip is serving the purpose... The biggest problem is that one also has the lever that lifts the presser foot broken off. I suspect the machine got knocked over and broke both items. I can lift and lower the presser foot with a pliers but that is definitely not a long term solution. Anyone know where these items can be purchased?