Alright, sorry for the late reply. I'll try to answer all of your questions to the best of my ability.
1. No, right now I'm doing keto - basically the carnivore diet + vegetables (mainly cauliflower, broccoli, and sauerkraut for the probiotics) and the occasional carb up to replenish my glycogen. The reason I went back to eating vegetables was because I was concerned that my gut microbiome health was being compromised and also I needed the fiber in my diet to prevent watery diarrhea. Yeah, disgusting, I know, but I was getting tired of getting the Hershey squirts every fucking hour 2-3 times after eating. I thought about taking lipase to mitigate the diarrhea, but decided against it.
2. Not really. But then again, I'm not a huge fan of cardio. Mostly my cardio is limited to stationary cycling and bedroom activities, if you get my drift. Occasionally, I will hit the heavy bag for 10 rounds to get my legs and arms limber and mobile. When I do cardio, I stack yohimbine and caffeine to get an extra boost in fat burning.
3. Scientific resources? Unfortunately, I can't find any peer reviewed studies on this diet because this diet is relatively new and not many studies have been done on it, aside from the anecdotal evidences provided by practitioners of said diet.
But here are some links to studies regarding the low carb diet:
https://www.ncbi.nlm.nih.gov/pubmed/22935440
https://www.ncbi.nlm.nih.gov/pubmed/21105792
And some anecdotal websites regarding the Carnivore Diet:
https://www.healthline.com/nutrition/carnivore-diet#weight-loss
https://chriskresser.com/the-carnivore-diet-is-it-really-healthy/
https://www.biohackerslab.com/ep19-dr-shawn-baker/