Do a search on this site for the a1060. Someone here also has one and managed to squeeze an isa vga card and a hard disk on a card into the case. If you do this, you can set up the PC side to be a file server for the 1000.
You could also remove the floppy drive and replace it with a hard drive. I'm not sure if they made isa ide controllers. I know isa scsi controllers exist. If you can't find that, then maybe an old mfm or rll drive and controller can be found on ebay. Scsi would be better though. Because then you could keep the 5.25" drive and put the hard drive in an external case.
brian