I would say in Texas you should be able to get it done for around 8K it just depends on what your metal is like and how much is done right, 6k is not enough to do the body work you need with alignment and other things. First things firts you need to strip the car down to the metal and seal it, from there you can start all the body work and metal work.
We will not touch a car if we do not strip it and you can see some samples of why not here.
http://www.feslerbuilt.com/Wallofshame.htm
Like the guys here are saying 6K will not be right and you get what you pay for so the more you pay usually if you go somewhere good the better the job is. Ask for some guys up here if they know somewhere in Texas to get a good paint job, ask around and get references to make sure you are going somewhere that does it right. You need to know
How they prep, body work, what they use, metal work and so on, check out the shop if its clean and the work looks good you are probably at a good shop. Good luck