Using an RM Clone as a Production LUN

Here is the Scenario.

Created Exchange Clones primarly for doing backups each set of clones is created every 12 hours.  Now if the Source LUN is corrupt or lost, What is the best procedure for using the Clone as the source.

A couple of differnet ideas pop up.

     Do I want to protect the Gold Copy Clone, if so how.

          1. Create a clone of the clone ( time required may be issue).

          2. Create a Snap of the Clone and use that as either the new source or as a Gold Copy.

          3. Recreate the failed original source on new disks and either retore from backups or reverse sync from gold copy.

     Then once that is determined, start the process of getting exchange up and running again.

Any thoughts, ideas.  or am I way off course.

Bing59