I am oct1-4 as well and am strongly considering cancelling and keeping an eye on instore pickup each night once the store stock updates for the new day. I’ve had to do it in the past as well for the X and ended up with the phone 3 or 4 days after launch day.
That's exactly what I did. I checked this morning and there was stock available nearby. Cancelled my order and made a new one for pickup at opening. Super easy.