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Help me LA amplifier design stages

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xanhphysics

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i have a project which need the guide from all of you :
I 'm designing a LA amplifier but i'm not sure which one i should choose to satisfy
my requirement coz i 'm a newbie in analog design
This is a spec:
LA spec:

VDD:1.8V
Gain: 60dB (maximum), preferly gain adjustable by bypassing the one or few stages
BW: 200MHz
Noise referring input: <100uV
Output DC offset:<5mV
Output buffer load: 50Ohm
Current: <5mA
Setting time: <5us
IIP3: 1mV diffrential input for the maximum gain

the questions i want to ask you are:
- Which stage should choose for design ? Inductive peaking , Capaitance ,Cherry hooper amplifier ?
- How many stages should choose ?
- Do we need offset cancellation ?
-How about output buffer ?
Thanks all for your help
 

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