I'll be interested to know if your plan works. I started a bee club in work a couple of years ago and we checked the hives only recently to make sure there weren't too many Queen cells in the hope it would lessen the chances of a swarm.
We did have one last year that was hanging off the branch of a tree and we managed to remove it intact and transfer it to a members newly bought hive.
Bees are truly amazing creatures and I am constantly learning something new each time I visit the hives.
Great work !