Good luck with your hunt and be prepared to pay a premium price if & when you find something.
I love sixteens but never set-up to reload for it. After everything that's happened in the past three years with ammunition availability & costs of 16ga when you do find something. I decided to take matters into my own hands & got set-up to reload the gauge so I had some control over what loads I'm shooting along with not having to hunt for ammo when I need it.
Chasing down the components was a PITA but I'm now set-up for feeding my 16ga guns the rest of my life. Like I said earlier, Good luck, but you might consider going the handloading route as long as you're on the hunt anyway.