Really nicely done, devs are mad if they dont implement this(Well, that means they won´t, but a man can hope).
Only critique for me is that the Visual difference between the normal and the first 2 heirloom models wont be visible ingame at all, they just really slight changes.Just a bit more would be the way to go there IMO.Just enough so you will be able to notice it when fighting an enemy, but not enough to change the weapons look much.