The idea of magic gauntlets or gloves has been used before in fics but it is a good one and makes sense; how else could one use a sword and a wand at the same time, but if gauntlets were wand substitutes it make sense. The suit is cool as is the helmet. One thing that annoys me is that Harry doesn't seem to do anything, everything is Hermione. Harry has had four years to develop his brains, let him use them and not just his brawn.