For anyone in the general Dekalb/Fulton area (or close too), I just wanted to share the info for the electrician that I used to wire the garage for the higher capacity line.
He did a great job. I didn't have an electrician already. I found his info on Yelp and gave him a call. I did not have an ideal set up to run the power into the garage, but he worked hard to find a way to do it economically. I also had Mr. Electric come out for a quote -- Gus, was significantly less expensive. Hardworking, honest guy.
With that line, I get about 25 miles/hour of recharge (less than Tesla said, but good). I'm just using the mobile connector and the NEMA 14-50 outlet. I'm not getting any of the wall charges.