You say you "need it for Tokyo"? If you're patient Advanced Brewing ships specialty yeasts in Japan, though they don't update their stocks so you'll need to check with them to see what they have available by trying to place an order first.
I've also been impatient myself and used alternate strains as replacements. In my research I've found that many strains just go by different names from different manufacturers. There are others that can be found with a simple Google search but here is one chart to help with your conversions. Scroll to cell 202 to read about US-05.
As for your specific question about yeast for stouts, I recently used S-04 for my ow English Teaown "Darjeeling Oatmeal StoutStout" recipe and--and it worked wonders, making a delicious brew--so I'd say go for it!