Everyone here is an expert, but no one mentions you should have either cabergoline or pramiprexole when running deca or tren just in case. I have NEVER taken deca!, but isn't it best utilized in cycles over 10 weeks due to its extremely long ester?
Regarding PCT - I'd say cut out the deca 3-4 weeks before you end your cycle because it can't mess with your sexual function. Take the prop for a month and start pct. Remember this is all in theory since I've never taken deca, but caber or prami is a must when running progesterone derivatives. I learned the hard way with trenbolone. Puffy nips aren't hip.
Don't run an AI like arimidex unless you need it. For me at 500mg test it serves zero purpose. It's real strong shit. Nolvadex - a SERM - serves as better use as it is not as strong, but it will keep your water down, and prevent nipple flares. Also, shoot your prop eod or at the least e3d. Some folks have been known to get away with pinnin prop 2 times a week, but it's definitely not advised.
And for fuck's sake you don't need a nutritionalist. One dude saying you're wasting money, so another can take it from you. Total waste of money. You'd be better off buying a book about nutrition for $15. Regarding diet - Your macros look good & Macros are important, but not nearly as important as calorie count. STAYING HUNGRY is the key to getting shredded.
Peace.