After waiting two weeks I found a licensed electrician via someone who was doing some work at my office. He is very knowledgeable and when I told him what I was getting he took the time to do the research online and by the time he came to the house to do the site survey, he knew exactly what I needed. He quoted me a great price to hook up my HPWC, and told me he'd be happy to install for anyone else here in SE Florida, and can certainly do NEME 14-50 as well. Price depends on distance, etc.
Of course the Solar City-recommended place finally sent me an e-mail, but too late for them. I suspect they would have been overpriced, anyway.
The new guy's company is Others Electric, Inc., and the owner's name is Joseph. His e-mail is jlmyers82 at hotmail dot com
Btw, he had specific questions regarding how the HPWC mounts to the wall, and he called Tesla about it. What he got out of them is that the thing doesn't exist yet, and as soon as it does they will call him and let him know the mounting specifications. They said it will be available "some time in October". I have some concern that I'll have the car before the HPWC...that's probably a topic for one of the main forums?