Reply to using cdjs with rane sl3 box and traktor

Hi, I'll be at a club this weekend and hope to be using their CDJs instead of my kontrol s4. I'd love to use them in advanced HID mode. I've done some research and I believe that the order of operations goes like this: cdj into usb, music file processed in laptop, out through usb into rane sl3 box, into mixer, out to sound system. Please tell me if this sequence is correct. However I need help with all the other logistics. Are there drivers I need for the CDJs? What about for the Rane box? What sort of preferences must be set in traktor for this to work?
Thanks for all the help!