Thanks Rick, Roland, David and Longzoom. I think I have the answers I am looking for, and unless one 9/9 piece drop in front of me at a price I cannot refuse, I will give it a miss.
I always admire the balanced way of response I get from here, clearly a legion of gentlemen and ladies (not in that order). Thank you.
I will do some minor fixing of the latest acquisition, and wait for Rick's write-up, which I learned will be a while more, as it is in the queue.