OK, the problem with raw, palaeolithic diets is that we all know that one size does not fit all. So, all we can do is provide a dozen different types of paths to follow, and, in most cases, most newbies will anyway have to tweak the path they choose to fit their own body`s needs. I will give you some ideas as a starter:-
1) Zero carb affected me very badly while exercising. After a couple of days on raw zero carb, I could not do any proper weight-lifting, I would quit after just half a set. I have heard it said that one can do great aerobic exercise on a zero-carb diet but not do well on anaerobic activity. Then again, I have heard claims of a few athletes who did fine on raw zero carb on any type of exercise.
2) I do not see salt as being useful in any way. We already get plenty of natural salts in raw, grassfed or wild foods. One can get even more if one drinks raw blood or eats very bloody raw meats.
3) Ignore the NHS guidelines re weight. They are based on things like BMI and are way inaccurate. According to BMI guidelines, Arnold Schwarzenegger, for example, would be described as being obese in his weightlifting days. Do not get too thin and do not get a paunch, that`s all.
4) Your extra mix of raw organ-meats is a very good idea. If one is unhealthy, then adding raw organ-meats speeds up one`s health-recovery much more.
5) Processed supplements are a complete waste of time and a huge financial drain. I once spent c. 500 dollars a month on supplements in order to regain my health and it was a disaster. All that happened was that I pissed orange from all the excess vitamins I was taking in. Raw, grassfed meats contain all the nutrients one needs in the body, including potassium and manganese. They are what is scientifically called "complete" foods.
6) You do NOT need extra omega 3 fatty acids if you are eating raw, grassfed meats. If you feel the need for extra omega 3 fatty acids, go in for raw wildcaught seafood, especially raw wild shellfish. There is some very cheap raw wild shellfish around. Of course, living near the coast helps cut down on costs. Avoid farmed salmon at all costs as it is filled with a nasty cancer-causing chemical called "canthaxanthin" which is used to give the fake pinkish colour - otherwise, without the dye, farmed salmon would all look a very sickly, unappetising grey. Raw wildcaught salmon is fine but very difficult to get now.
7) I`m glad that you are not doing dairy, raw or otherwise. Raw dairy is the food that rawists have the biggest problems with when starting a raw diet. Some do fine on the stuff, but, generally speaking, it is not an essential raw food and wise to avoid it if you hyave other sources of raw foods.
My own raw zero carb diet experience was a disaster. I started out really well, in that at first my levels of alertness/concentration were significantly boosted, then my ability to do sport plummeted except for some swimming activity - after c. 3 weeks, I suddenly developed massive hunger-pangs and constant thirst. No amount of eating raw meats or drinking water, even salted water, solved the hunger or the thirst. I soon developed loosened teeth and felt tired all the time. Eventually, I had to stop or face hospitalisation. I get too much of an appetite and eat too much if I have too many carbs, so I stick to low-carb generally.
Others, though, have had a wonderful time with raw, zero-carb and have spoken of a short, transitional period lasting from days to weeks, depending on the individual, where their bodies adjusted and they had a few minor temporary issues. I guess you will just have to experiment to see what works.
If you have access to raw wild game, that is the ne plus ultra of raw foodism. The stuff is far more nutrient-dense and tastier even than raw, grassfed meats. Try it once you get too used to raw, grassfed meats. When in the UK, I got a lot of raw wild game and raw wildcaught seafood from local farmer`s markets around London, the ones with an LFM association tag.