singnal processing citcuit

Design a circuit for very low amplitude noise i.e. below 0.1microvolt & below 0.3 hz, then pre amplification with gain 1000 ; then passing through filters to separate out signals between (1)0.3 to8 hz (2) 8 to 11 hz (3) 8 to13 hz (4) 11o 16 hz (5)16- 30 hz (6) 30 to 120 hz then re-amplification with gain 1000 ; then saving all in csv data file,