@Yeats, @KillRamsey, @asterinex, @zapatista, @bobbywise, and @Lightmancer,
Thank you all for your great input and info. Unfortunately, I've got the patience of a gnat, so I've blundered ahead anyway:) I was looking at used Fuji XF 35mm f1.4 lenses, on Ebay, and seeing what they were going for...