frayed

Adaptive sport seats. . . I'd skip these, as the standard seats are great and the adaptives I had on my 997S weren't really any better than standard.

Instrumental dials in guards red. . . I'd skip

Sport chrono package. . . you said for resale; perhaps folks don't appreciate that in the GT3, the chrono only adds a stopwatch? I'd delete it.

Automatically dimming interior/exterior mirrors. . . not a big fan of auto dim, as they darken too much, can't tell if johnny law is coming up behind at night

I don't see full leather in the order? I assume you forgot to mention it, as the leather bits make no sense unless you get full leather.

Go with Guards red, it's a GT3. Leave Gray for the Cabrio customers.

Consider PCCBs