Need help with options on a 2008 4.8 need opinions asap

[np2004]

I finally pulled the trigger yesterday on a 2008 X5 4.8 just put down a deposit but had a few questions about options that are a must. Color is either going to be titanium silver with black or space gray with black with walnut trim. So far I have ordered and have until next week to change my mind on options 1) Premium sound its a must for me since I love hearing good quality sound and I cant go without a 6 disc changer in the glovebox, 2) Navigation which is a must for me when trying to get anywhere I considered the technology package but wasnt to impressed with the rear view camera especially in the dark and the pdc just was annoying with the beeps, 3) Comfort seats I loved how they felt and all the different arrangements you can adjust they just felt heavenly on my back, 4) Ipod/USB port a must also for stored music on my ipod/ pioneer inno, 5) Heated front seats in Ohio thats a must I considered the cold weather package but I dont ski and it doesnt include rear heated seats the heated steering wheel was nice but didnt get that warm to the point of noticing it, 6) Climate pkg rear def worth it so people in the back can have their own controls especially good in the summer for when I take my 2 dogs anywhere, and the two major packages I am debating on 7) Premium package I am still 50/50 on this since I could just get BMW assist separate for $750 with bluetooth for 4 years and save $1000 since Nevada leather is standard on the 4.8, lumbar is standard with the comfort seats I am getting, I will have navigation so dont need the mirror compass, so the real question is the Garage Door Opener, Ambient Light Pkg, Inside Automatic Day/Night Mirrors, and O/S Automatic Day/Night Mirrors worth $1000? also the biggest question is 7) Should I get the sport package with 19's I love how it looks just dont know how practical the performance tires will be in the snow in Ohio unless I buy separate rims/ winter tires to use which is a hassle to switch. I am especially concerned since I already have a 04 330ci with the sports package with 18 inch ps2 tires that cant move in the snow.