As for the 5/2 diet, that was only if you wanted to attempt both goals at once as I have read about it doing so.
As for strictly cutting, I think this might give you what you're looking for:
Test E @ 250-300mg/wk (2500-3000mg total)
HCG 250iu 2x/wk
OTC Fat Burner
Clen - 40/40/40/60/60/60/80-80/80/100/100/100/120/120 (4320mcg total)
13-13 Clomid @ 100mg daily -- 14-16 Clomid @ 50mg daily
13-14 Nolvadex @ 40mg daily -- 15-16 Nolvadex @ 20mg daily
I believe this cycle along with cardio and a strict CKD should get you down to the 10-12% range if not lower. Don't have too much experience with CKD so can't say forsure. With a full out keto diet this could easily be attainable. I wouldn't be too worried about an AI at this dose but I'd have Adex on hand regardless cause you never know. I don't think you have enough proviron to use for a full cycle or even feel you have a need for proviron either. I'd save it for when you get to lower bodyfat levels. If you want to use it regardless it wouldn't hurt from weeks 4-12 @ 25mg ED. Your call.
Just to put something more advanced in your perspective. If you really felt you'd have the time and strict enough diet to attempt both phases in one cycle. It would have to be a strict keto diet from weeks 1-14 and then attempt the 5/2 diet I spoke of earlier from weeks 15-26 if you fear of gaining some fat during your cycle due to shitty diet. If you can count your macros and keep protein around 1.5-2.5g per lb you should be fine as long as your surplus isn't 1000 over maintenance and consist of crappy quality foods. I'd advise it look something like this.
Test @ 400-500mg/wk (6000-7500mg total)
Adex @ 0.25mg EOD (bump if bloat still appears)
Wks 1-2, 5-6, 9-10, 13-14
Clen: 40/40/40/60/60/60/80-80/80/100/100/100/120/120 (4320mcg total)
Wks 3-4, 7-8, 11-12
OTC Fat Burner
Dbol @ 30-50mg ED
Tbol @ 40mg ED
Proviron @ 50mg ED
HCG @ 250iu 2x/weekly
27-28 Clomid @ 100mg daily -- 29-30 Clomid @ 50mg daily
27-28 Nolvadex @ 40mg daily -- 29-30 Nolvadex @ 20mg daily
Not even sure if you'd have enough time to run this but realized after I finished the whole thing. Anyways, hope one of either appeal to you. Feel free to ask more questions, I was spoon fed on every topic when I first began AAS so I think its only right others get at least some help if they show they put an effort in seeking some knowledge on their own. Good luck.