First, to Bevel450, I have the lever apart and have initial dimensions - working on a drawing and trying to obtain true dimensions from the aussies (road and race). I will be in touch (I am old and slow).
To DukeDesmo, thanks for the catalog site, I now have a parts catalog for oldsport and the part number for my quest.
To ward, thanks for the gowanloch site, that's one I didn't know. I have queried them and road and race for availability (no from r&r) and dimensions.
To all, my son says he will contest any will that does not bequeath him oldsport (he is willing to forego the new Sport 1000), and my brother is waiting with a check any time I'm ready to sell it back to him. So far I have resisted all cash offers.