copy a cluster

Well...
The approach I would take is...

Copy the WAS Install DIR from one machine to the other (be sure to include the profiles directory -- profiles don't necessarily exist under the WAS Dir)
Copy the WC Install Dir from one to the other (be sure to include the instances directory)

Do a search/replace within all files under those directories.
replace any instances of the IP address of the old with the new machine's IP
replace any instances of the hostname of the old with the new machine's hostname

Since you are federated, you should repeat the search/replace for all machines using all hostnames and IPs since machine1 could have a config file that points to machine 2.

Remember most of this stuff is NOT a commerce thing, but a WAS thing. WAS does not provide utils to "copy/move" profiles

Remember that this has not been tested by anyone here so your mileage may vary.