Consider this. The rear wiper on a 911 is actually very useful in snow and heavy rain.

The 911 was the first production car with a rear wiper
wiper. For long time 911 owners, a 911 looks incomplete
without one.

Its easy to add a thicker, sportier steering wheel, but not so easy to add the rear wiper assembly.

I would keep it on your order.

Hope this helps your order problem.