I think we may have a difference of opinion here.
If the bees have decided to swarm then they often swarm in spite of attempts to remove all queen cells. There are quite a few Easy methods of persuading them that they have already swarmed, which may lead to a couple of hives which can then be united back to one when the swarming period is over.
I would suggest that the OP do some research now in anticipation, maybe come up with a list of options and we could critique his thought processes.