can anyone direct me as to where I can find a repo or new dash for a 68

The whole dash or the instrument panel? If you have a dash now the Just Dashes will remake it to factory look. If you're looking for a conversion set of gages some people sell that search through the posting in Dash or Gages. Should turn up something.

Check the links section for the Elky Vendors. EC Parts, The El Camino Store OPGI etc...