I have been doing keto (almost carnivore) for 3 months now. I was drinking once a week but decided against it for now because they say it takes 2-3 months of strict compliance to become fat adapted.
Once I have reached the 3 month point I will drink wine when I want to. A bottle of dry wine is about 20 carbohydrates. The alcohol is problematic but I am not going to be one of those keto nuts who thinks they need to spend every minute of their lives in ketosis. Getting fat adapted is the goal for me. You may want to go easy on the Port though.