Are you kidding? Those wheels have *way* more negative offset than stock.
The only way to make this kinda/sorta work is with new knuckles and/or LCAs.
I'm an old man. I think in terms of backspacing and don't understand this offset stuff. I went by this chart:
From looking at the pic of the car from the rear, it looks like it has as much positive offset as it can have for the width. There are cars on this forum with 8" wide wheels spaced out to fill out flares. I thought that was what you were talking about, which isn't what I'm seeing here.
It's hard to run a wide wheel on a strut suspension without adding width to the outside of the wheel. And yes, it does hurt the scrub radius but I guess the extra tire makes up for it because they're faster with the wider wheels.
My CP Mustang had 12" wide wheels and slicks on the front, and I never mathed it out, but I'm sure the scrub radius sucked. I had the k-member modified to raise the control arm pickup points two inches so that I could maintain camber gain under compression with the car lowered... Anyway, I don't know anyone in CP that was faster on narrower wheels unless it was wet or cold.
The well built cars had the custom built front suspensions like what you're talking about that allowed a shit ton of backspace so they could get zero scrub, or close to it.