We could do it around 8 to 9 pm Eastern to take all time zones into account. Those sample adventures would actually be really useful, especially if they have sample enemy stats. What I'd recommend is that we all get on roll20, skype, or google hangout to iron out setting/story details. Basically work out where you all start out, what time period the campaign takes place, the type of gameplay; just the basic framework that I will build the story off of. As far as group size, I'd be fine with 4-5 people. 6 maximum. That's certainly the max number of people I can comfortably give their own personal stories on top of the main quest, if that makes any sense.