Speaking of Cayman stickers, my '11 came with period stickers. That's how they did it 9 years ago.
The original owner had "issues", hence the car was tattooed with a buttload of them. I took all of them off, including the ridiculous one over the driver's side door. I left the strange twisty road sticker because it's unusual, and the car is still slightly garish with the "Cayman S" sticker already anyway.
As it looks today:
This will give you a comparison for your 911 if you decide to go with stickers on the rocker panels.
I would have never ordered the yellow seat belts and dash instruments. But I added a center radiator.