Alright, folks. We should all just toss in our towels.
Plainly, Diamond Cross has proven us all to be liars.
Despite the fact that, yet again, he's completely missing the point. The well-played 18th-level wizard has enough tools in his bag to never have to deal with this stupid, contrived scenario.
And if it does come up, he's got the capabilities to say, "Screw this; I'm out of here and I'll deal with this tomorrow."
And I'll tell you what, DC - I'll consider doing this.* If.
And only if.
You run a fighter through the same gauntlet. We'll compare notes on who survives better.
* I really don't have all that much spare time to contribute to what is, essentially, a moronic process.
EDIT: Oh, yeah - and your spell knowledge restrictions and your "No Summoning!" rules are stupid. I won't abide by them, should I decide to take you up on your offer.
EDIT 2: Your drow can't be spellcasters, either. Otherwise, you're just making the argument that a Wizard with some help can beat a higher-level Wizard, which, you know, duh.