Leo -
Thank you very, very much for the offer - it is most generous! But I think we may have that one solved. The local Motion Industries outlet didn't have exactly what we needed in stock. But he checked and found out that the store in Atlanta has what we need, and is having them shipped over-night up here. We pick them up on Thursday morning (now I just hope that no teams in Atlanta need the same bearings we want!

). And after all that, he did not charge extra for shipping - instead he gave us a discount when we told him about the project!
-dave
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I went on vacation to "find myself" - and got lost!