Need opinions on wheel and tire size.... please check my math

I have a 2018 white CM (fastest color ever). I am putting a Bilstien 5100 adjustable shocks with 2 coachbuilder shackles on the driver and 1 passenger which should give me 3" of lift on the top setting. Also putting +3 coachbuilder shackles on the rear. Those are all sitting in the garage waiting for install along with a TRD sway bar for the rear.

So I am ordering new wheels and tires. Looking at the Hostile Alpha 20x9 0 offset. I was also going to put 35x12.5 Nitto Ridge Grapplers on it. I am also considering the 295/60/20 which are 1" thinner and about 9lbs lighter. The math I am using is wheel width/2-offset-90. So this gives me a 315/2-0-90 divided by 25 to convert from cm to inches. This tells me I will be 2.7" outside the fender. Does that sound right?

My objective was to have 1 to 1 1/2 inches of poke, not almost 3. I just wanted to get a second set of eyes from those who might have this setup. If this is true then my next thought was to maybe use some Bushwacker Pocket style fender flares. And if I use the flares should I go with the 0 offset or bump it up ti the -19 offset? So many questions.

Anyways, thanks for looking. Appreciate any info the more experienced people have to offer.