Changing the Name of an Open Directory Server while preserving users, etc.

Hi Everyone,
Not an emergency - but I have been wrestling with this dilemma for almost a year now.
The good news is nothing has to be done right away. But I will ultimately need a solution.
We have inherited a server system at a traditional elementary school from a previous IT person who was immature to say the least.
When he set up the server system, he named the open directory server something that, while innocuous is inappropriate for a school setting. I am sure he thought it was clever and cheeky at the time. But a few years later it is simply unprofessional. And we are being expected to ultimately be able to change it so something like "XXXdirectory.domainname.edu" The more it hangs around - the longer it looks like we did this and it makes us look unprofessional.
So here is my dilemma.
This is an OD Master with iCal and network homes attached to it. It also runs DNS.
I would like to set up a new server and name it "xxxdirectory.schooldomainname.edu"
Setting up the new server is easy and getting all the client machines to bind to it - no problem.
The problem is how to migrate all the users to the new server. It seems a restore wont work because if the new server is named differently, the restore will fail. I also can't do a server migration because the stupid name migrates to the new server.
My old server is 10.5.8 Server. The new one is 10.7.1 Server . But could be 10.6.8 Server if need be.
The main problem is how do I get all the accounts onto a new server with a new OD master name?
I don't mind command line stuff. So throw whatever you got at me.
Thanks in advance for your help everyone. Don't worry - I won't be a pain in the butt or argue. I just need some good solid guidance, even if it is a "Not possible" answer - at least I have something to tell the administration when they want to know why we can't change the OD Master name from mcnugget.schoolname.edu.
Please let me know if you need more details. I am happy to provide.
Thanks again.
Tony

If you don't mind resetting everybodies password then you can export the users and groups and wipe the server for a clean install or turn it into a standalone server then back into od master then import the users and groups.

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