So tomorrow I have to brew because I'm on a tight schedule for an event. I have 3 beers lined up for it already: ESB, Golden and English Pale. I wanted to brew a sweet stout to also have a nice dark beer for the event but I forgot to pick up some roasted barley. There is no way I can get a hold of any in the next few days so I was wondering what I could do. I have Wyeast 1099 Whitbread Ale and 1272 American Ale II. Could I still brew a Sweet Stout or should I maybe opt for a Robust Porter or something similar? As for malt I have Maris Otter and for specialty, chocolate, black, caramunich I and II, biscuit, aromatic, wheat and a bunch of others. Could I substitute the roasted with black, chocolate and caramunich? If not, maybe a coffee porter? The only thing I'm worried about is that this beer really needs to be good because it's for a festival I'm doing, so I don't want to take a risk experimenting if I might end up with a bad product. Any suggestions are greatly appreciated! Thanks in advance