if you did the mods in your profile then you can install the springs yourself. all you would need is a spring compressor for any auto store (rental is around $6 per day). there are many guides in every forum to assist you. so, install is basically free and you learn a little more about your car. the job can take about 2-4 hours depending on your tools and know-how.
In florida i know they rent tools out for free at most auto stores, you just need a deposit. And, I'm not trying to not be safe about a situation but I rented the spring compressor and didnt even need to use it to be honest. My spings when the car was jacked up had no tension in them. but as a precautionary you may wanna use them.