My better judgement tells to to stay out of this one. What the heck!
I have only heard of one guy that had built a car for that price. He is in his late 50s and has been building and working on cars all his life. He built his own frame and owns his own body molds. It took a life time of skills and years of aquiring tools to get to the point where he could pull that kind of a deal off.
After building my car the term "kit car" has become offensive to me. There may be some brands that are like building a model but I have not found any. I use to think Factory Fives cars where that way until I talked to few guys that built them. There is no perfect kit and I have researched them all. The top end cars like ERA and Unique I would not call kits unless you buy the basic frame and body.
It takes a lot of work to shop for a good brand and determine what actually you need vs. what they are selling as a complete kit. The word complete in this business does not mean everything you need to build the car. I have a file of all the parts needed to build a car. If you want it PM me and I will send it to you.
If you are serious and can not be deterred then I would look at two brands. Factory Five has come a long way and the improvements with the Mark IV make it a darn good car. There is a lot of support and there are two forums to get help. The company has a good reputation. Another company to look at is McGill Street Rods.
Fiberglass 34 Coupes and Cobras by McGill Manufacturing. He has been building cobras for I am guessing 18 or so years. He was the other partner with B&B and now is on his own. His car may get you started in the price range that is reasonable. Barry is a man that works with his hands and does really good work. His frame is strong and his body is thick from what I have seen.
This being said, I think you really, really, need to spend a lot more time and learn about what you are getting into. I was once told by a manufacturer that about half of the kits sold were never built by the original owner. Does that tell you something?
Wayne