Thank you Len,
I called them today and learned a lot. They offer a German square weave, which was used in the 230 and 250 SL's, but never offered for the 280's? A couple hundred more for them, but an option if I want to upgrade

The 280's came with the Multiloop carpets.
Fun fact - My father bought the car used in 1981 - but it is also a father to son car, with just 1 prior owner.
I also see you are in San Leandro - pretty close to me in San Rafael. Do you do any local rides?