Interesting. I can certainly help with the WAP's and VLAN's, though.
You desperately need a console cable (rollover cable) so you can get access to the console of the devices - though typically you'd need a laptop alongside to configure them.
However, I do believe you can configure a Raspberry Pi as a Cisco Console Server, as you have a USB to serial dongle within which you connect the Cisco "rollover" / "console" cable to, SSH to the pi, then access the console from the command line of the pi.
It's called a rollover cable because the pins are "rolled over" between the RJ45 and the serial end, pin 1->8, 2->7, 3->6 and so on. (I think)