I'm not K-con staff or an admin or anything, but....
Hmm, well this is my second K-con. Last year. I got there around 7 AM and since I pre-regged online, there wasn't too much of a line. that being said, there was still a heck of a lot of people there. The con is just being held at the hotel. If you want to rent a hotel room, that's a totally different affair than con-check-in. Um, a little later, closer to con time, the website should release a list of events, where they are being held, what time, etc. Last year I tried to print off all of it and wound up with like over 30 pages, so yeah. If you want a tangible list of the events, you'll probably just have to print it off yourself. By the way, even if you get there early, the lobby will be super crowded and loud as heck. If you want peace and quiet, retreat either to your room (if you have one) or up to the karaoke lounge. Unfortunately, the elevator lines get long and hectic, and the hotel staff starts to get really ticked off after a while. If you wanna get somewhere, but don't want to take the stairs all the way up, just walk up to like the 5th floor and try to join the elevator from there.
ultimately, the crowds are inevitable, but they sometimes just help pump up the excitement. hm, my advice to you would be just to get there early in the morning and try to beat the crowd. Good luck =3