I also did a bunch of estimating of what, exactly, I was planning to do for my contribution to it all and how much time it is likely to take. I used the best-worst-most likely estimation thingy, and I think I have a number that's not totally fake. And I remembered to include a temporal overhead factor in my estimate, so maybe it's actually even vaguely in the right ballpark.
Big grant proposal. Eek. Here's hoping it won't suck too much...