Is your car a base model, (not PP)? and not optional brembos? If so, then the G-Loc ones listed for the base model should work. The EBC ones, I have seen part numbers on ordering sites differ from part numbers on the manufacturer's website. buybrakes.com has lots of the EBC pads listed, and they...
Active exhaust "can" be added, but not on a budget... Ford performance offers quad tip exhaust kits (non-active) that include the rear quad tip valance. But also may be a bit much if on a budget... but pretty simple clamp on install.
Those are the top two choices for all season tires... I have the DWS06's on the S550 and the PSAS4's on the S650... I think the DWS06 has a higher mileage rating, if that matters to you.
So you enabled the feature with forscan? Your car was not originally enabled (I think only premium trim get the auto greeting)... perhaps hardware different.
They may be just trying to sell you more stuff... Talk to a local detail shop. Not saying the dealer can't do it, though they may try to sell you extras that you don' need.
All of the manufacturers are going the digital dash route these days... some do it better than others. Though I have (almost) no issues with the S650 dash...
Color choices are terrible... even 24 choices were limited... no orange, green, or purple. Perhaps they will have a new color with...
I hope the OP gets his car and comes back to report same. I know how it is to be away from home for work for extended periods of time. Hopefully he has trusted friends/family that can help him out and get the car he ordered.
MY 24 Ecoboost options were already limited compared to the GT... they removed even more available options... really glad I got my fully optioned Ecoboost when I did. It's gonna be a rare one going forward. If I were to order a MY 25, it would now have to be a GT to get the options I want.