Some markets are more competitive than others. If NC isn’t generally competitive, shop further out.
Repairs and maintenance aside, your cost of ownership on a purchase isn’t the sum of the payments. It’s interest expense + depreciation.
Car loans are available with preposterously long terms that result in lower payments, but that doesn’t mean they’re financially a better idea.
Most people advise against purchasing EVs because the depreciation curve is generally even more punishing than gas vehicles.
The coverage in your entire state (or even an entire metro area) generally isn’t relevant. Beyond home charging, check Plugshare or similar app/site for coverage near where you live or work or otherwise frequent.
Learn how to gather the required inputs and how to use the LH calculator, and then use the data in the two forums I linked above to construct the lowest offer you believe the market will support.
Select a dealer and make a firm offer, and if you get declined, move on to the next dealer. This doesn’t require extensive conversation at all. Politely, the conversation is, “Here’s my offer, take it or leave it.”