I'd start the cycle when you can focus all your time on it. So whenever that is for you.
I'd have my PreWO after the first meal. Training that early and soon after waking I'd also make the first meal as easy on my digestive system as possible and quick digesting. So I personally couldn't do tuna, oats. I'd go with a whey/carb shake or cream of rice+whey or a whey protein sludge just mix with tiny amount of water to create a sludge consistency. You could throw a carb powder in there too and a little fruit if desired. Just anything very light and quickly digested is the main thing though.
At 5:30 I'd take my PreWO. At 5:45 you'll be ready to go.
During the back-end of WO I'd start drinking the amino's with carbs.
I'd skip the PWO whey shake and move straight to your 7:45 meal.
Everything else seems ok. Maybe add in a few veggies
As for training, if you normally train 3 days a week I'd up that to at least 4 days while on cycle, preferably 5.