Some great ideas but it appears that a museum might be a good place to start. Toolpartsdirect.com doesn't appear to carry any parts for Craftsman/Sears and Roebuck brand items, unless I'm looking right at it and missing it.
As for searspartsdirect I emailed them and just heard back--- "we no longer carry any parts for this model" and they don't have any other places to look. This forecast is not good!
I wonder if there is another brand of saw that would have parts that would work?