You do realise that if, about 75 pages ago, you'd decided you wanted a dignette, you could have had mine, .... and saved me from burning money collecting bits of 1980s Japanese metal and glass.
I have no idea about the lenses - only that mines a 2.8 Dignar. I think different lenses went on different models. The later, super Dignette has the Cassar I think, but it's also got a lightmeter too. I think it might depend on what model you are looking at - there are different shutters on different models too.
I couldn't find much information about them when I was looking. There's more on the Ilford Sportsman, which is a rebadged Dacora.
http://www.photomemorabilia.co.uk/Il...Sportsman.html