Tesla Motors Club

Hi everyone. I'm from N. Central MA, about 45 min NW of Boston, just below the NH line. I'm in IT, for the local power and gas company, and my commute is 44 miles/day round trip. 40 of that is all highway, sooooo I'm leaning heavily towards a Model S, and all the excuses I've had so far for not getting one are dwindling.

I now live in a townhouse, where I can have 240V run for a HPWC.
I now make enough money where it's not too cost-prohibitive, but an actual good investment.
The wife has an ICE Subie wagon that gets 36mpg, just in case.
Her family is from Central VA (near Farmville), and we would now be in SC range. (my FIL has even offered to put a 240V outlet outdoors on a pole for our visits.)
With SC expansion coming through PA and down 81 and 64 in VA, we'd have multiple ways in and out.
We have many friends in the Norfolk/VA Beach area...and right now, we could get there, but would have to find a ChaDEMO once we arrive. Once the SC goes in...that would really be my last remaining obstacle.

So now I need to start researching trade values....
Who does TMC contract with to work on trade-ins? I have a 2015 Audi A3 sedan (which I love.....), but clearly the Model S would be better. And oddly, bigger and more practical in some ways.