construction of a surveillance wireless camera

Hi there, I have a very peculiar challenge for you guru guys:

I want to build a surveillance wireless camera inside a table clock and let it permanently in my bedroom to have an online access to monitor what´s going on there at real time.

My work place is 2 miles from my home, and my idea is to install inside this table clock a 900Mhz or a 2,4Ghz wireless camera kit.

This wireless kit will be connected permanently to this table clock, so I have to reduce 110 volts to a 12 volts (input voltage for the wireless kit)

Do you think is any small kit may work to fulfill my idea? if so, Could you recomment me one? Where can I get it?

Thanks in advance

Carlos Cazenave