What I would do: install perl such that everything is below a certain directory - say install it with prefix /opt/perl. Once you have done that, burn the directory to CD-ROM.

Recovering means putting the CD-ROM in a drive, mounting it, cp -a, umount of CD-ROM and you are done.

Works even better if you have a test system. You burn the CD-ROM on your test system and install/upgrade/recover your production system with it.

This solution of course doesn't scale. If you have a gazillion package to recover, you'd need a good backup solution. HP Omniback or Veritas Netbackup. But they aren't cheap.

Abigail