Think about this. Your proposed set-up is common but set-up that way your cycle is much heavier the first four weeks. It makes no sense, as you start gaining your results slow down and that's when you should increase the dosage, not at the start. Sustanon doesn't take weeks to "kick in" either. It kicks in immediately. I would do the Anadrol for the whole 3 months, why not. If you're going to do one cycle and then be off for years again. Alternatively do it at the end of your cycle. I would go like this: 250 Sust + 25 drol for say a month. Then if everything is fine and you "need" more double both until gains slow down again.
A 12 weeks cycle will work but it's really really short if you want real gains and especially want to hone in your strongman technique with your superman physiology. That's not a whole lot of workouts. 12 weeks is when things just start to get good.
You know what, Van - you should advise me on this. I mean, if you wouldn't mind, and have the time. And you would have my personal assurance [for what that's worth] that I will follow everything to the letter.
It could be a sort of Getbig transformation project, with me under your tutelage!

It wouldn't be a lot of advising on diet - just give me macro targets to reach every day, and I'll meet those targets.
If after four weeks, I've made gains from my current physique, you will know I'm serious about respecting your coaching.
From what you're saying about Anadrol, three months on it is ok? I was concerned about hepatotoxicity.
I don't drink alcohol, so my liver would not be taxed anywhere else.
My diet is currently good in terms of macros - but I'm so low in calories, that I am actually slightly in ketosis [ketones in your urine mean ketosis, right?].
I have not used any gear since those two 3-week 12.5mg daily Anadrol cycles from 2016.
So I've been fully off everything for 5.5 years now.
This is a photo of me from yesterday: