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I'm not sure what price range OP is comfortable with but e-tron SUV and sport back are available at some dealers. I've not seen any mark up. Range is eh but charging rates are quite good.
I met someone last week who had just bought an EQS. The Mercedes dealers in both San Diego and Laguna Niguel added over $10k in markup, so she bought it from Ohio instead. I don't know whether she drove or had it shipped back to San Diego.