Man, if you want a 460XVR, get ya' one. Like some other posters have said, X-frames are big, big, guns. Not exactly the perfect packin' pistol.
Magnum Research also offers a Lipsey's BFR .460 S&W Mag 5” with black micarta bisley grips which looks fun.
You mentioned shooting .454 and .45 Colt out of it, which is doable, but Max Prasac wrote in one of his books he's never been able to get acceptable accuracy from .454 and .45 out of a .460 revolver due to the throat jump. Most folks agree it's better to load down .460 than shoot .454 and .45.
For shooting white-tailed deer, may as well stick to the standbys, .357, .44Mag., or .45 Colt. They're easy to shoot with readily available off the shelf ammo. Some posters have recommended .41 Magnum, a cool cartridge, but unless you're a reloader, ammunition is hard to come by.
That's just my opinion, and you know what they're worth.
