Hey, about your contest idea.
Don't thinking about who would host it, I don't see so many people interested. Perhaps, I will do anything (If this was Malganis, I would travel Northrend and get Frostmourne in 5 minutes) to see this happen, just because i feel it have a great potential.
Actually, I think it's hard to get the atention of most hivers, just because they don't watch the Arena forum every second (even i don't. I just was bored, and started reading some forums stuff) so I get an idea.
Maybe, I could make some "demo", creating an example map, just to upload it in maps section with a link to the thread, and try to see if people gets interested. I just want to know what do you think, I think we can even do some sort of 3 bosses (or more) in a few time if we colaborate...