Oh man, you have so many options at your disposable. Working out in the morning, is a privilege these days.
There are so many ways you can go on about doing this that anything I say, should be considered more of guidelines rather than a hardcore template-to-be-followed.
First of all, given your situation, I would definitely CBL(Carb-Back Loading). I did it myself when I had a PM job. It was amazing! It will have you eating barely anything in the morning, and all kinds of bullshit you can find in the evening, while gaining muscle and leaning out. I say again, it was amazing, and it worked very well for me. I'm not saying you need to CBL religiously, but personally, I'm not a fan of IF. I am a fan of loading your carbs later in the day, and focus on protein/fiber in the AM.
Personally, I don't follow pre-planned diets anymore, because honestly, the only difference between AuthorA(and his diet) and yourself, is that this guy spent some time learning about nutrition, learning about his own body, and then trying the shit out. Once he realized what worked, he put that into writing and sold it. That's all you would need to do, is to learn a little bit about nutrition, then find out how your body reacts. To learn about basics of nutrition, and about supplements and other things that could help you in your training, check out my other thread here in the beginner section, called "New To Nutrition?..."
As far as your training goes, I think you're in an extremely good place. Working out, on an "empty" stomach, first thing in the morning is amazing! John Kiefer touches on this when he speaks about his CBL tying into your training, but I've never seen as good results (muscle gain and fat loss) as I did when I CBL:ed with fasted training. It was heaven.
Why "empty", well, given that you ate enough carbs the night before, and had perhaps a protein shake in the morning, You can go hardcore in the gym without any fatigue or 'weakness'. I'm not sure how familiar you are with glycogen etc but yeah you could go max-effort on an empty stomach and feel great. Now, someone will definitely say "Hey, you're not fasted if you are consuming a protein shake or BCAAs pre-workout" but this is a process you would have to figure out for your individual self. When I did it, I would wake up, have coffee and go train, but knowing what I know now, I would definitely have some source of protein pre-workout.
Yes, it's very feasible you structure your training this way, HOWEVER, it is very important that you input a solid portion of carbs+protein after your workout. I think you can get away with waiting 1-2 hours after your workout to eat, but that meal, post workout, needs to be hefty in carbs and protein.
I hope some of this shit makes sense, I can't really tell if I'm all over the place or not, but I'm ready to leave the office and go workout.