For raw, and/or vegan, while not necessary, a good blender, a dehydrator, a food processor and coffee grinder, and a steamer go a long way. As far as ingredients, it is really just a matter of substituting any processed foods and animal products/foods with unprocessed and vegan alternatives. In most cases they are excellent substitutes available.
Some of it can really be tasty. And the upside is that on a diet like that, it is near impossible to can weight, and usually a person's skin, no matter how bad or good it was before, improves quite a bit. Also, usually energy levels improve, as well as clarity of thought and a more sensitive spirit.