In addition, by compressing the spring 2 inches, if you fully extend your suspension, you run the risk of the spring falling out of the pearch, then you would be in a world of hurting.
And...
If you dont have the money to buy springs, and you do lower, then I'm assuming that you dont have them money to get an alignment as stated above. If you don't get an alignment then you will wear your tires faster as stated above. If you wear your tires faster, then you need to buy new tires which you dont have money for.
Look Im not trying to bash you for not having funds. I was at that point 5 years ago too. Im just saying that doing it cheaply ends up costing more money than doing it correclty. I know this from experience. If you keep an eye out, you might be able to get some used eibachs or intrax, and you WILL need some used koni's or tokicos to keep up with the increased spring rate. If you don't replace the struts, you will wear your stock struts out and have to go back and do all the labor over again to replace the struts.