Your VC is virtual! basically it si just a set of files.
You can shut down the VC server, then utilise a combination of cp for the files and vmkfstools -i {vmkfstools -i {source disk location} {target disk location} for the vmdks to copy the machine onto you're shared storage location.
When it's at the shared storage location, you can then register it on the standalone host, vmware-cmd -s {path to VMX file}.
You can then power it up from the viclient, log on to the server and tidy up the loose ends.
The fact that you are utilising copy operations means that the original location remains unchanged during this procedure, until such time that you choose to delete it.
Simon