Self programming: noise reduction program

Hi all,

I am trying to create an noise reduction program which can completely reduce background noise such as fans, road and tyre noise whilst in car, wind noise etc. But speech still needs to be loud enough. If someone can give me an idea of where all the gains need to be also how much compression should be set (1-3) and what the MPO should be ideally be for this noise reduction program. I have made a start and attaching the current settings.