Congrats on the order! I see that delivery times are slipping into November, but yes, if you confirm earlier than your two-week cooling-off period, it might move up. Mine went from "October" to "Late September" when I confirmed early.
You can see what I ordered in the sig, and here are my thoughts although it's hard for me to say much as we got almost the same car:
Color - knock yourself out, totally personal preference. I went fridge white with white roof. Have a pearl car now and like it, but not $1,500 more than std.
S vs P vs P+: I went S because I thought the $10k from S60 to S85 gave a lot for the $... Supercharging, tires, faster acceleration, battery warranty, increased range, etc. I did not feel the extra $14k from S85 to P85 gave as much value for the $, but rather was strictly a performance upgrade (though I am sure it is awesome!). I was hoping to keep my car under $100k so the P was the first thing to drop off. I did not drive it as not to be tempted. But if coming from M3 and the like, I see the rationale for P. P+ I have heard can be harsh riding and can have tire wear issues, though I am not the authority on this.
Sunroof: I went without as well. The wife wanted it, I was wishy-washy especially given the $$. The lack of a solid shade to cover it was the dealbreaker. The roof does block a LOT of UV and heat, but it's not perfect. Skin cancer is my business and I just couldn't see it, as aging UVA rays can silently pass through a lot of tint/glaze etc. without causing burning (UVB) or heat (infrared) sensation. Also, I don't feel the "added" headroom is real usable space. In both the pano and non-pano cars, my head at 6'2" grazed the roof in the middle rear seat, either the headliner of the non-pano car or the rear edge of the pano in that car. I did not feel more comfortable in the rear of the pano car. Driving position was great with either car as the roof clearance up front is higher. I drove both cars and truly the pano is more fun for the rear passengers than the driver who can't really see out of it at all while underway.
Wheels: I just liked the standard, personal preference.
Interior: I went black leather, just my taste. Might regret in Arizona but will be getting UV/heat blocking tint. Also went with Obeche Matte wood. I have the piano black in our LR4 and it shows fingerprints pretty easily. Left out the yacht floor as I will likely get the center console when available.
Tech: for sure. Truly don't know why they sell it without.
Air Suspension: drove it both ways, on the highway the air was much smoother over ridges and bumps, and the ability to jack it up was nice. For the highway driving I do, it was no contest that air felt nicer to me. They do say the coil sits higher than air at standard height, so you have to remember to raise it when needed. Some comment the coil car feels more "connected" to the road. I liken it to the BMW sport suspension from my drive. Some love it, some hate it.
Parking Sensors: if getting tech seems no-brainer - they work great. Think it should be standard with tech package.
Interior Lighting: did not get. Thought it was a lot of $$$ for some extra LEDs, and that they should have been included. Now that the door handle downlights are standard, I chose to save $ here.
Fog Lights - $500 - agreed for occasional need and coolness. Bought this instead of interior lighting pkg.
Upgraded Sound - I bought as well. Agonized a little. That said, I listen to XM almost exclusively, and after listening to both systems, it was a go. I hear you can get nicer stuff aftermarket, but a lot more $$$.
In addition, I went also for:
Rear seats: I have 2 littles who will just be growing into these, so will get use out of them. Will be heavily tinting the back and getting the mesh shade as well. I'm a car seat safety nut and rear facing is so safe, I felt compelled.
Also I did not go for:
Subzero: same as you, live in OC now, about to relocate to AZ this week - so no real need. Would have bought it if the front seat heaters were not standard.
Dual chargers: with <100mi/day usual driving, overnight 40amp charging off NEMA 14-50 seemed fine. Thought about it briefly as future-proofing, but saved $ here. Also did not buy HPWC as no benefit w/o dual chargers.
Alcantara, extended leather, etc. A lot of $$ for what you get IMHO.
Paint armor: seems Xpel or Suntek film is better for about the same $ aftermarket, which I will probably do.