It's a good strategy. I like how you said retired, so we don't actually HAVE to kill them all.
I'm going to be out of town until Monday so if I'm not on you guys have permission to use Kairon for skill checks to keep things moving. His diplomacy is +12+5 minor aura +1 major aura + whatever circumstance or aid anothers you want to try.
Diplo +18 + circumstance + aid
Or Fascinate/fear DC 15
Or +5 morale +1 insight to checks
If you wonder what he would do just keep in mind that "This world is made for love and peace!"