Go to Canadaprotein.com and use CP101 (coupon code), they have everything you need for a weight gainer as far as ingredients go. Saw your from Montreal, Im in Toronto and its quick shipping to as they are based out of Windsor
I wouldnt use the brewery dextrose personally, At Canadaprotein they have waxy maize for cheap as well, which I prefer.
He who dwells in the shelter of the Most High will rest in the shadow of the Almighty. I will say of the LORD, "He is my refuge and my fortress, my God, in whom I trust." Psalm 91:1-2