eBay may be your best bet. I am guessing Ford does not have them in stock anymore.
Maybe also check some MKS groups on Facebook there may be someone who is selling their original mats.
Although the tests have shown the new Ranger is a competitive vehicle, it certainly is missing some pretty basic items by today’s standards. It still feels like they are intentionally hamstring it. Hopefully the items you suggested will get added, along with the sunroof option. I personally wouldn’t buy one without 4A.
Hopefully, Ford will fix the 2024 Ranger blunder for 2025 and offer 4A, rear seat vents, and ventilated seats at least on Lariat. Canyon/Colorado offer all these features on multiple trims, Tacoma has ventilated seats on multiple trims. Overhead console with auxiliary switches should be optional on all trims as is offered on Canyon/Colorado and Tacoma.
You should be able to disable the warnings through the menu settings (not the button to silence them while the alerts are active).
As for the double honk, just don’t close the door all the way. Or use Forscan to change it but that requires a laptop and knowing what code to change.