Decomission EV 10.01

I have a EV 10.01 cluster and management wants me to decomission the server and move all the archives to a PST file on each user's network drive.

This is what I am planning on doing.

1) Stop all tasks.

2) Export all archives to the user's network folder.

3) Shut down servers (it's a cluister).

4) remove Send As from the EV AD accounts.,

Is there anything else?

Thanks,

Isaac