I think your configuration looks good, I have a 75d we are picking up on Friday. The options we picked that were different than yours are autopilot, towing package, charging upgrade, ultra high fidelity, and we went with figured ash (but we have black interior).
Of these, I would suggest if you have any inkling of using it, the tow package, it is a good deal and can't be added after the fact. You never know when you might tow a utility trailer, boat, or other water craft. As for autopilot, this was a requirement for me but it is something you could upgrade later. Finally, for the ultr high fidelity, we did this primarily because we liked xm, but the internet radio selection is so good on model s, I don't think I would ever subscribe to xm. Not sure about the difference in audio quality but that would be a personal decision too.
Oh one more thing, we did 7 seat because of the folks we will be taking with us but if you can get by with 6 that is the best config space wise. Also, I personally don't care for the premium package because of the automatic front doors and not sure the features are really worth the price.