Friends coming to my wedding

None of my friends drive and a couple of them are out of state. So my sister wants to drive 300 miles to come get her and her bf (who I can't stand) and my best friend wants me to drive 300 miles in another direction and come get her. Both want to stay at my house too. I can't afford plane tickets and hotel rooms as we're getting married in s park and it's going to be low budget (we're saving to fix up our cars and `buy a house) my only other friend lives about 30 miles away and would also want me to get her the day of and take her home. (The wedding is at 1:30 and I have to get ready and set up ghe wedding so I'll be very strapped on time. ) I don't know what I'm suppose to do.