countzero:
I wasn't thinking that it be integrated with the Kickstart ROM image itself, but next to it, if you will, on the ROM, or on another ROM.
I was thinking of it like; you set up a RAM or RAD disk, or just somehow format a floppy with only say, 100k of space... now take a disk image of that, store it in a ROM and then mount that as a RAM: or RAD: disk image.
I know that you can't just take 'DIR' and throw it in the ROM next to the other ROM resources...