HI All, Well, I have some bad news. Following the suggestion above from Luke Miller,I ordered my parts from Boca Photo who had everything I needed in their on-line catalog. That was over month ago.
I have heard exactly zero from them. I have had no indication that they received my order, or, that they have shipped it, or, if it was on back order. I have sent them two emails expressing my unease with no response from them. I paid for the order via credit card. The amount is not large so I'm not too worried about the money other than on principle.
At this point it seems like they are not in business any more. On their web site they mention they are not very formal. That's an understatement. I do not even have an order number!!
None of this is your fault Luke. Do not feel bad. I appreciated the suggestion.