This is a recent idea, I take it? I've got a couple questions...
1) To quote Chai - "That thing looks freakin' huge". Even if it's cardboard, at that size it'd be incredibly expensive.
2) How are you paying for it? Entirely from donations? I mean, c'mon.
3) From your site: "Public safety agencies will have no objections to The Yes." Um, and you can say this because...? Assuming the scale is anywhere near accurate, it looks like a good wind would turn it into a sail. You have seen the wind blow out there, right?
4) Again, quoting from your site: "When not at home in Black Rock City, The Yes is on permanent tour, spreading YES cross-country and world-wide." So, does this already exist, or are you tense-challenged?
Don't get me wrong, I'd love to see it out there. I just don't see how, not anything like the scale you've shown anyways.
I can't wait to see what Bob thinks, that's fer dang sure!