I would personally leave it. Everyone I am sure possesses an analytical mind great enough to visualize what the deer looked like before it broke, so no one needs to be "sold" on the idea that it was an even larger buck before the break. Plus, and this is JUST me, but things like broken tines, funky/junky racks, scarred faces and the like give the deer more individual identitys. Everywhere you turn is a picture-perfect deer hanging on a wall, majestic, large, balanced. They lose the unique quality of each one afer a while. With it missing, that deer has an identity all to himself. But again, everyone is different and no one is wrong. A great buck no matter HOW you go about it, congrats!