I've got a silver referral set I used with my 2017 MS I can sell you. Rims, Tires, TPMS, Lugs and bolt covers included. The tires have about 5k miles on them. If interested, I can send pics and take tread depth for you. They are sitting in my garage.
I have 21" Turbine Rims in Gloss Black that are staggered and up for sale in the Tesla Parts For Sale section. Including an extra set of matching black center caps and new TPMS. I'm in SoCal if you're interested.