I agree with what has been said. I would buy stock and if you want it modded then do it your self. I dont trust other peoples work, there are so many "ghetto rigged" set ups its not even funny. Track cars are not daily drive friendly and tend to do a lot of wear and tare, pretty much look at zoodivers post he did a good job explaining it. I have a modded car used for DD, but my set up is more street friendly. I do feel all the bumps in the road, my rear end is stiff, speed bumps suck and so do any other dips in the road. I put a lot of wear on my suspension and tires (which are not cheap). I have more in suspension wise than motor wise as I dont want to put a lot of ware and tare on my DD motor/tranny, thats something I would work on when I have another car I can use as a DD. Slowly over time even a more street friendly modded car will wear down and take a beating.
If you are so intrested in a small fun car for the summer, why not look for a small manual car you can have fun with? Buy it cheap and mod it your self, there are plenty of different types of cars you could look at. I guess if you just want to drag then whatever but its not fun with out the clutch, imo.