I had the same concern so I emailed my mentor prior to reporting. I was told not to bring them, and didn't need them. I did bring my ribbons, medals, warfare pin, Corframs (sp?), and belts that I could just change the tips on. You won't be able to wear the Corframs until you're a Candi-O in the 10 or 11th week so leave them in your car. Also, if you've got good leather dress shoes, bring them to wear on a daily basis so you can save your new shoes for inspections. Don't bring them in on the first day, you'll have a chance to get them from your car before the 4th week inspection. It really won't matter until after the 4th week anyway, since you'll be wearing running shoes until then.
Don't waste the space in your car with your complete enlisted seabag. Write your own email if it will make you feel better, but don't just lug everything down there "just in case".