On 29 Sep 2011 at 7:01, Enrico Lazzerini wrote:
  Hi, I'm not unfamiliar with the various versions
of the firmware of
 your Kaypro 4, but the only person that comes to mind is Dave
 Dunfield. In time he has collected images of boot disks of many
 machines. I arrange from a few months of a PC configured to be able to
 read and write disk images 3.5 " and 5.25", but I live in Italy. Once
 you've got practice on how to use the software to create boot disks is
 more 'easy to do that to tell it. If there is no one else to may help
 you I can try. I'll give you references of Dave Dunfield: 
Over at Erik's forum, I posted the image of a Kaypro Advent TurboROM
boot.
--Chuck