From what everyone has said I definitely see the value of a coach now, which is why I will end up getting one. I was just originally under the impression that I'd be able to figure my turns and everything else out once I got in there. However, thanks to you folks, I got a nice dose of reality (unless you all secretly work at their and are hustling me for cash...) haha.
I won't know until I get there though if I can get any sort of deals as I live about 3000km away from the tunnel and have no personal contacts. Either way I will report back in August how it all goes.