It should arrive within a few days!
I decided to keep the standard M1 Pro 8 Core CPU / 14 Core GPU / 16 Core Neural Engine I originally ordered but went with 32 GB RAM and 2 TB SSD. I currently have a 13-inch late 2013 MBP with 16 GB RAM and 512 GB SSD, so it should be a huge difference and last me fine for the next 8 years.
Not upgrading to 10 Core CPU slightly nagged at me, but $200 here and $200 there for things I really don’t need really can add up. I’m fine with my decision.
My Photos library is on an external SSD drive, so I look forward to “bringing that home” again.