For something like SystemV filesystem support to be truly useful, won't we need a way to format drives using the original implementations?

If we just create the filesystem using the Linux driver, and validate it using the same driver, then what is achieved exactly? For preservation we'd still need access to Xenix systems and a drive of some sort that can be moved between the old system and a more modern computer.

I suppose disk images could be used, but that still seems like only a partial solution.