arcgis 10.0 - How to replicate an unversioned SDE geodatabase to a file geodatabase?

I need to implement a process for creating a file geodatabase copy (a read-only snapshot, essentially) of a production SDE geodatabase without using versioning, adding global ID columns, etc. I cannot change any aspect of the SDE geodatabase.

All of the documentation I have read on geodatabase replication says that the parent replica data must be versioned. Indeed, attempting to create a simple check-out replica with either the Create Replica wizard in ArcMap or the Create Replica geoprocessing tool fails with the following error message:

Can't create empty replica. Read only data or unversioned data cannot be replicated. Data versioned with the option to move edits to base cannot be replicated. GlobalIDs are required for two way and one way replica data. Creating one way archiving replica requires archiving to be enabled on the parent.

Is there a way around this?

I need to be able to run the process once a month so a scripted or programmatic solution would be preferred (arcpy, ArcObjects., etc.). The amount of data to be synchronized is large, probably 500 datasets/tables/feature classes.

One solution that comes to mind is exporting and importing ESRI XML Workspace documents, but this seems heavy-handed and error-prone. Another would be a more fine-grained approach of listing and copying individual datasets with arcpy or ArcObjects but if there is an easier, existing solution (i.e. geodatabase replication, if it would let me), that would be preferable.