It sounds like you need a database that will contain the content, and on demand, output the reqired eight appropriately formatted documents using the database as the central data source.

To a person sufficiently versed in PHP and/or Python and/or perl and/or {insert your own preference for a script language here}, it would not be an insignificant task, yet well within reach.

Mind you, *I'm NOT* volunteering for this, my programming skills are in the "hit the mosquito with the sledgehammer" range.