Hi Paul - saw your post about failed eBay attempt and wanted to give you (2) leads -- both long-time eBay sellers, I have used in the past. (go to advanced search and search by Seller name). Anyway, both are plane guys: pniederber and nhplaneparts. I would write and ask them if they have what you want.
Sorry I just saw your message. My saw has the main number of 22114, but I have found a secondary # of 152.221140 now that I think about it they are almost the same number. Not sure about your number do you have any pics of it? I haven't really used mine yet so I can't tell you how well it works. I hope it is awesome and the only saw I will need for a long time. Good luck.
I am looking at a used saw that looks extremely similar to yours. The model number does not include 22114 though. Has your saw got a 22114 model number or some other model number assigned by Sears. The saw I am looking at is in Canada so it may be that the Canadian numbering system for Sears is wacky. This model number is 152.271250 and I cannot even find it on the Sears.ca or the Sears.com website. Any help would be appreciated.