I scanned through some of the comments on the forum linked by Jim Kelley and what really struck me was a few (not just one) people who said something like "I went against the comments of a few people on here and ordered a car from SAS anyway."
Or one of the classic excuses: "I went to visit his shop and it was pretty busy and he is very persuasive and convinced me it was a good deal."
Jay-Sus Mary and Joseph!
The guy has, like, ZERO credibility and hasn't shipped a confirmed car in over five years and yet, people are still willing to give him deposits based on zero credibility and smoke screens!
I totally agree with @Robert M:
You will NEVER get a car built by Steve Lawing from SAS. A phone call won't help and neither will an in-person visit. Get a (good) attorney and get your money back. The sooner the better.
Try getting the Tennessee Attorney General involved, too. You're probably not alone.