Yeah - the link was very useful!

The key information I needed out of it was to delete the keys form the database Keys table and then restore the encryption key from the backup, using RSKeymgmt.exe

I'm just got to try and automate the process now if I can and I might (if people are interest) write a little article on it at some point, as I can't find much on RS disaster recovery.

I'll let you know if I get automated.