Bill - I'm in Houston, a short 3 hours away from Austin (but ten times as ugly!). My 3Wer should be delivered in September/October. We have a nice crew of Catherham owners who take drives in the hill country regularly, I plan to join them - it will be nice to have another slow 3Wer to keep me company!
I ordered from Brighton in Scottsdale because in a real pinch if the car needs serious fettling I felt I could flatbed it out...Shane is a nice guy and I was happy with the service I got when I took a test drive out there.
You REALLY need to drive the car to know if it really makes sense for you. The roads in Austin, and even the Houston suburbs, are pretty good compared to those experienced by our brothers in the UK, so I don't think bump steer will be as big an issue for us. When I drove on pristine Scottsdale roads it was obviously non-existent.
I posted my initial experiences after my test drive in a different thread:
http://www.talkmorgan.com/ubbthreads.php/topics/133469/Finally_drove_one_at_Brighton_#Post133469 I drove a noisy bevel box car, and it didn't bother me excessively. There is a Caterham dealer in Dallas, and I think that car should probably be on the list for you as another contender. The 3Wer is more style than performance, and the Caterham is more performance over style, but they both scratch the same itch.
And for what it's worth..I think the stickers on the Superdry are a tad silly

Personally, I have no idea what the connection between classic British motoring and a Japanese tee-shirt company is...