Saturday morning, thankfully, my saw is working again.
As it turns out, I didn't need any parts at all, the blade holder(#41D) on the drawing, was bound up , and had the spring locked at full compression. I sprayed some dry lube on it and after a while, I finally got it to budge. It took more effort than I would have expected, to free up the holder, but where would we be without effort. This has been an awful learning experience, but I hope it's over. Now onto the 38 Christmas ornaments for our families. Thanks for the help.
Rick