For now, no. Changing the address to something not in my flot-operations repository is currently undefined behvaiour for the scripts; I haven’t written anything for complete off-line use, nor a comprehensive initialization script. Until we decide to change the NBT group we shouldn’t change the pub keys part. But it would still be good if you can fork the flot-operation and help with syncing unspent outputs.
On the other hand, if you wish to work with NSR I think you can change the RPC port, set up shared settings (address etc.) and create the flot-operations folder/repository accordingly. I’ll write something for initializing an address snapshot at some point.