It will cost you more per kilo, but you might be better off going with Wheat Protein Isolate instead. WPI is just vital wheat gluten with more starch removed. Quite a bit more starch, as a matter of fact - only a small fraction of the carbs. Because of it's high protein content, you use quite a lot less to get the same binding/leavening/strengthening results, making it cheaper in the long run.