ANSWERS: they hav e put out a map already...I am familiar with the roads...in fact about 5miles of it overlaps with my normal commute. There is only one hill climb of note, and it is near the end of the ride, and shouldn't last more than 2-3.minutes...I will likely not have to worry about being in a large crowd at that point.
Weather for that day says high 53;.low37...so the 8am temp may well be in the upper 30s Or low49s...fine for me, since I've been commuting in worse, but it may limit the turnout...