Image from single disk, deploy to RAID1

Hello all, this is my first time using Snap Deploy, and it's to rebuild a critical server so I wanted to check that I am doing this right. Here's the scenario:

* Server has two drives in a RAID1 mirror that failed. The down drive was not reparable. I'm replacing both drives and am going to rebuild a new mirror with them.

* From the one functioning drive (which boots to Win2k3 server and runs just fine), I created a Master Image Creator bootable usb thumb-drive, and made an image of the entire functioning drive and saved it to an external hard drive.

* It should be noted that the machine to be rebuilt is also our Snap Deploy 4 server, so during the rebuild, it will be unreachable - i.e., no Snap Deploy 4 server.

--- Using the bootable usb thumb-drive and the image on the external hard drive, and knowing there will be no Snap Server available, what is the best way to rebuild this machine onto the new mirror?

Thank you.