Thanks everyone for the replies. I am going to stick to a morning ride. And look forward to seeing everybody around 8:30 on Sunday morning.
I made a small edit (which adds 4 miles) to my suggested route:
as a road I originally planned to ride on will be closed for the Boulder Peak Triathlon (Westbound Jay Road from Colo. 119 to 51st Street) on Sunday morning.
Grant, perhaps another group can form for an afternoon ride? Breweries: several of them downtown Louisville. Avery in North Boulder (Gunbarrel), Twisted Pine in Boulder, Southern Sun in South Boulder. In Erie, the Old Mine Cidery is a (very) popular RMCC destination.
Safe travel and looking forward to seeing everybody very soon.