Hope its ok to ask my question here. I was given a singer featherweight 1948-51 model. Sent it to the repair guy for cleaning, etc. He let me know the motor has oil on it it needs to be replaced. (It was not sewing quite right when I sent it to him)So am wondering if I can get a decent motor cheaper than $90 for it? Thats how much he said a new motor will cost plus his fee to replace it. Should I get a new motor or get a vintage one off ebay? Thanks.