Widebody Help REQUIRED

[Celigts]

To start, I've had the kit for years, since like 2015, however it's always had an issue that continues to nag at me since I've put it on.

Whenever I go out of a driveway or even a dip, my REAR tires are rubbing on the body kit fender. Not at the top as if the cars too low, but at the rear.

If the tire were a clock, it would rub at approx 10 O' Clock. Just where the top fender meets with the rear fender piece.

My setup is ...
Greddy v1 fenders
Skunk2 coilovers ( replaced 6k springs with 8k springs )
Stance lower control arms v1
Gramlight 57xtreme Matte Black 18 x 10.5 +12
Tires are 285/35/18
ISC 25mm conversion spacer 5x100 to 5.114.3

Someone told me that trailing arms could be a solution. However, I'd rather not waste money on trailing arms if it won't fix my problem.
As you can see...My car is not lowered where I want it to be because if I were too lower it, the tire would break the fender. It's rather annoying.
(also, side note, ADVICE on rear wheel fitment please...since I feel like my rim/tires look small on the back. Feels like it needs another 1/2 inch/ full inch wider stance...)

Here are some pics.

[VIP BRZ]

I rub in this exact same place, RB v2 although my car is lower then yours.

I don't think the trailing arm are going to make any difference at all.

Personally, i'm considering trimming that area

smaller tires are the only %100 fix but the'll look funny

[Celigts]

I wish there was a fix other than cutting into more of the body. Oh well.

Appreciate your feedback.