Hi Todd,
Are you sure there is no way to do this? Other devices allow for replication jumpstart and especially if used over a WAN seems vital.
something like Portable Volumes to let users use an external USB drive to jumpstart replication. When the system admin creates a replication pair between arrays, the destination and source is created then source array exports the data to the USB disk(s). The admin then drives or ships the USB disk to the standby site and plugs it into the destination array there. Now the link between the sites can be sized for the data change rate
Cheers,

Paul