your gonna need spring compressors. You can rent them from autozone for 40 bucks and they refund it when you return em. get the compressors that attach to the outside of the spring to compress them. You don't NEED new shocks but with that drop the stock ones wont last too long. You'll need a camber kit as well. Its going to be a big drop so be careful when you go out driving as your gonna scrape a lot. Let me know if you have any more Q's

Edit: but if your gonna sell it and dont care if the person's tires are gonna wear out quick on the insides skip the camber kit and shox.