Some good news. After much trial and tribulation I got a converted pc drive to work, not ideal because of the case, but at least greaseweasle works.
The Amiga drives which work in my classics wouldn’t play ball nor a couple of pc drives.
I’ve got a box of Amiga floppy drives somewhere, presumably A500 drives will work, which I’ll dig out and go through methodically when I get time.
But for the time being thank you for your help and excellent blog.