Recreating organizational CA

A few months back, I retired an outdated server from my dev environment. It was only much later that I remembered this was the server that housed the organizational CA.  Questions:

1. Is it possible and/or advisable to spin up the server from the last backup, re-add it to eDirectory, then migrate the CA?

2. If this is not possible, can I just use iManager to...

   a. delete the current CA object

   b. create a new CA

   c. recreate all server certificates, LDAP, and remote-loader certs