1: Yes! It's plug'n'play, you can i stall the TM Base PCB in it also, but you don't need it.
2: I don't have the desk mount part, I use it mounted to the floor, atleast that is rock solid!
3: Do you mean forward pitch or rotational?
It depends on where you want it, Realsim sell a stickadapter with the correct F16 pitch, not cheap though.
http://realsimulator.com/html/f-16-c_angle_adapter.html
Rotational can be adjusted however you want :)