No one here will do Your work for You but...................
CMOS is exactly what you need as it has a negligible quiescent current drain. The over all design needs a few things.
1) Sensors, what are you trying to detect and where?
2) a timer , for entry/exit delay.
3) a code pad or key switch for activation/deactivation.
4) logic that makes the whole thing work.
5) maybe optional... A real world output that is controlled by the logic. ( I.E. a relay or optocoupler to activate a siren,lights or dialer)