@Fausto
Instead of using USB dongle, I decided to use PCIe card, inserted into m.2. I used couple of different Intel based WfFi cards and both of them worked. I think USB also should work, but I decided that it is more important to have higher speed of WiFi as opposed to disk, so used the PCIe card for Wifi.
My script already installs everything for Access Point, all you need to do is to modify /etc/create_ap.conf to point to correct device names for ethernet and wireless adapter.

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