so can you tell me if the average roll of tape will be enough to go from the stem all the way to the end?
Not quite with the one I bought. Dunno about Moustaches. Unless you are buying expensive stuff (like £30+ Brooks leather). With reverse brake levers you don't need any fancy shennanigans around the brake levers, but I'd buy 2 reels as you'll need to refresh it sometime. Mind you even "cheap" imitation leather stuff is £10 a reel!