Set up 8 portals. The portals can use 8 different relationships based on 8 different match fields to different occurrences of the same table. Moving a record from one portal to the next is simply a case of changing match field values.
Set u 8 portals. The portals can use just 1 relationship, but each portal would use a different portal filter to show a sub set of all the related records. Moving a record from one portal to the other would be a case of changing the value of a field in the portal record so that it passes through a different portal's filter.