You don't ask for much do you?
After the cost of the car and the parts upgrades, a shop will eat up your budget way before getting much of what you want done. IMO you are going to get the most for your money by finding a car that has already been done in a way that is pretty close to how you want it. Be patient, as it could take up to a year or longer, but you will find it. Look at lots of cars first, with the idea that you will not even consider buying one until you have seen at least 30 or so. This will give you a good idea about what you can really get for your money. Photos of cars online do not count. You need to see them and drive them in person. When you think you are serious about a car, be sure to have someone who really knows these cars inspect it with you. Don't be afraid to walk away from a car that you are not 100% comfortable with.