SF Metal Man,
Your show is scheduled to start at 8:00. I would expect it to start on time, as it's an all-ages show. Eklipse is playing a 30-minute set, putting Delain on around 9:00. Their respective 45-minute set would have Kamelot on stage by about 10:15. Kamelot's sets are running about an hour and a half, thus ending the show around 11:45.
It's really a matter of how much it means to you to see Kamelot perform three songs off of "Silverthorn" that they hadn't performed on the previous tour, not to mention seeing them play a full set with Tommy. I saw them in Joliet last Thursday, and though I was happy to hear them play some more of the new material as well as see Tommy show his true stamina with the band's material overall, I was seriously let down by the song selections from the back catalog. There wasn't a single song in the set list from any of the first four albums, and to make matters worse, each of the back catalog songs in the set list have been performed on each of the last three or four tours. I know I've complained about this before, but I really think that fans need to pitch a fit with Kamelot (and Symphony X, for that matter) about their laziness in re-learning their old material.
Stay metal. Never rust.
Albert