Tesla Motors Club

I need opinion about purchasing a used 2017 Model S with about 11,000 miles. It has all the options including FSD, Folding Seats, Premium Package,Cream interior, Sunroof, Enhanced Sound, Subzero, EAP 2.5, Metallic blue, 21 inch wheels Gray titanium. Owner configured and bought new. Not a Demo model. Original MSRP about 153K. Did get his $7500 tax credit. No paint protection or wrap. Bought in Sep 2017

I have the following questions for you guys.

a) What should be a reasonable purchase price of this car?

b) What should I look for during inspection apart from obvious cosmetic things?

c) Since the car has aftermarket all season tires Rial 19 inch for winter use, how do I make sure that 21 inch wheels with summer tire are not warped or anything? How much tread should be left on 21 inch tires after 10,000 miles.

d) How do I figure about battery degradation?

e) It was purchased using his own referral link. Does the second owner get free supercharging for life?

f) Should I get car serviced by Tesla before purchase or do they give an inspection report? How does one transfer phone app to one self?

I would appreciate advice from y'all.

Thanks in advance