Captain Morgan
Chef Extraordinaire
man, I'm the last guy I'd ever ask advice about a brisket, but in your situation, I'd go indirect for a long time. Can you keep your grill temps below 250? If you have a smoker box, load that bad boy up and get as much as you can early. After a while I'd foil it to keep it from drying out, and leave it in there till you get the meat temp you want.
It shouldn't be too long before someone who knows what they're talking about comes along.
It shouldn't be too long before someone who knows what they're talking about comes along.