Good question with the Data Replication over WAN.

I think for cost reasons to ship the server back to be replicated would be costly unless you have this in the budget then good idea.

Or if you can take a USB drive or SATA (Windows formatted) and copy the data then ship to the destination server then use the "Add on's" tool from the Console screen go to CTRL ALT T then select "Add Ons" then seek the drive then select the share where you wish copy then you are good to go.