I'm glad you're finding a way of eating that's working for you! My biggest takeaway after doing lots of research into WAPF/paleo/primal/TF was that there are as many different ideal diets as there are people, but that there are some constants as well - processed foods, seed oils, modern wheat, sugar, unethically raised meat and improperly prepared grains are good for no one. Beyond that - meat or no meat, low carb or high starch, dairy or no dairy, nuts or no nuts - all of that is up for you to find out for yourself.
I can't see any reason why anyone couldn't incorporate WAPF principles into a vegetarian diet. You could still eat fermented food, you could eliminate wheat and soak/sprout ancient grains, have raw dairy, cut out processed food, eat seasonally, take fermented cod liver oil, get plenty of sun, eat pastured eggs, eat lots of good fat.
I wasn't a total vegetarian, but grains and legumes absolutely ruined my health. I had leaky gut syndrome that lead to a bizarre and painful autoimmune illness that no one could identify. Now I know that gluten and lectins were shredding me apart and I'm in the best health I've ever been in. I've discovered so many things now that I pay close attention to how food affects me - fruit makes me bloated, nuts make me hungry, pasteurized dairy gives me gas and makes me break out, low-carb doesn't work for me (likely due to nursing), caffeine in any amount at any time affects my sleep...the list goes on. Listening to your body is what's important.