I Have been thinking of trying some 18” wheel just for the only reason that they look so good on a sapph but know there is so many conflicting opinions on them!

I Just want some opinions from you guys on rolling the front arches, the car is in primer at the moment so is the perfect time to do it if I can make my mind up,
The arches are original and rot free “I know this as I’ve owned the car since 91”

The only thing that’s putting me off is weakening the wings or creating a water trap also the fitment of the arch liners, I’ve never looked close at one done so don’t really know.

It’s rwd and lowered by 25mm not coil-overs also have read that some rwd sapph s are ok on 18’s without rolling?

Opinions and info please guys.