sodick mark 25 controler mark 21 sys disks

Morning seems a few people here are seeking sys disks for their old sodicks. me included.I am seeking Mark 25 sys disks. or at least file copy. it is a pain to copy the file if you have no floppy drive. the mark25 can read 1.4Mb disks, which means it can be read in a modern usb external drive. sadly the mark21 are 2s/DD 720Kb you have to choose your usb external carefully.I have some backup-ups of Mark 21 that come off an A500.is there a store place around?please let me know as would be great to get this controller connected to my old a500 bed.