Not much done on this for various reasons, I have upgraded to a Ruckus 7363 Access Point instead for now.

Cisco's 1260 wireless access point can be run in two modes, the most common seems to be in LAP or lightweight mode, this requires a wireless controller to function, or the other mode is Autonomous which means it runs as a stand alone Access point without any dependancy on other devices.

The LAP can be converted to Autonomous mode by reflashing IOS with a different image.

This page covers upgrading a Lightweight (LAP) 1260 Access point to autonomous mode. This means it will function independent of any Wireless Controller.

It will also cover setting up multiple SSIDs with a trunk uplink to the switch.

This link from Cisco covers config for Personal and Enterprise use:- https://www.cisco.com/c/en/us/support/docs/wireless-mobility/wireless-lan-wlan/67134-wpa2-config.html

Hint:- Use https://www.draw.io/. for block diagram of ios and bridge groups