You have asked a couple of interesting questions here and I look forward to seeing the replies from more experinced and knowledgeable people than me.
When I consider your problem I have to hope (presume) you have a consistent lighting set up and consistent exposure in camera and therefore the images will process with much the same parameters settings in filmic. If this is the case then what I am suggesting may work, but I am not sure if it is any different in its actions to creating a style. I would process the first image until it looked good. Then I would use the keyboard ctrl+shift+C and select the parts to copy. Then select another image from the shoot and use ctrl+V to post the same adjustments across. This process has worked well for me in the past.