Sorry about the wait. Just learned that "getting notification about replies" means getting notification here on the forum, not getting a message to my email. Learn something new every day.
Anyway, 5 PM EST / 9 PM GMT sounds good.
As far as campaign goes, I don't usually prepare a grand plotted campaign (in Shadowrun at least). I usually just set up an interesting situation, throw some runs together that are related to that situation, and then let the campaign go whichever way the players take it.
I'll try to get some good hooks in there, to draw you into the mess quicker than in my usual campaigns, but since you players will be driving the boat, I can't give any guarantee that we will reach a good stopping point in the time we have.
Is that okay?
Should I set up a campaign for Monday 5 PM EST? Then we can get together, discuss what setting we want, and make characters.