Unless you absolutely don't want to do the removal, why not scope out the situation and see how it goes? I'd suit up, smoke the heck out of them, poke around, and see how they react. Don't start removing anything, just see what they do when you get close, maybe jiggle the combs a bit, and keep applying smoke. Maybe you'll find they are more workable than you think. If not, you can just walk away and kill them later.
I'd look at it as a chance to do a practice run. If you start and can't finish the job, they were going to die anyway. If you accidentally kill the queen, well, you would have ended up killing her on purpose anyway in order to cool them down.
So long as you are suited up, you don't really start getting stung until you're covered in honey and the suit sticks to your skin.
To kill them without poisoning the honey, I would suit up and go in with a shop vac and just vacuum up all the bees. Then just block the intake so they can't leave and any that weren't killed by the vacuum will be dead before long.
But, why pass up an opportunity for a practice run or even the possibility of getting some new bees?