RAID 5 to RAID 1 with minimum downtime

Hi,

I have a Dell PE-R710 with two disk array.  The first array contains the primary boot OS and second array is a punctured RAID-5 array with 4 physical disks.  All data on the second array is on a single NTFS volume and it is mostly static data.  I have decided to replace this bad punctured array with a 2-disk RAID-1 but I would like to do this  with minimal downtime. I will make use of an MD1000 disk array on another server to prepare the 2-Disk RAID-1 array. Will the following steps work?

1. Purchase 2 brand new disks and insert them into the available MD1000 disk array connected via a PE-2970
2. On the PE-2970, use OMSA to create a RAID-1 Array using the 2 new physical disks and create a new simple volume of the entire array and format as NTFS
3. On the PE-R710 (the server with the bad RAID-5 Array), backup the entire RAID-5 volume minus the corrupt data on an external USB connected HD using Windows Server Backup
4. Connect the external USB HD to the server connected to the MD1000 and restore the data onto the new RAID-1 volume making sure that the volume name matches the original
5. Bring the newly created RAID-1 disks offline and remove them physically from the MD1000 unit.
6. Shutdown the PE-R710 server with the bad RAID-5 array and remove the 4 bad disks
7. Insert the two RAID-1 configured disks (prepared on the MD1000) into the PE-R710 server
8. Boot the PE-R710 and let the controller  import the foreign RAID-1 configuration on the disks
9. Reboot the server.