Have you considered block replication software like Steeleye or DoubleTake?

I'm running FusionIO drives (local storage) and in my QA environment configured a GEO Cluster resource on the windows cluster.

Simply put, the replication software permits local drives on each node to act as part of the cluster.

And - you might even consider configuring the GEO cluster resource and disabling the actual replication because you don't need the tempdb data being replicated.

Might be worth checking out...