well Ive done the hubs a few times in the past month now. First your going to want to pb blast the hub bolts, and once you get those out, the hub will probably not come out, so the way i did it since i was already replacing hubs and didn't care for them, was to bang on them with a 3 or 5lb sledge. This will eventually get the hubs out, just takes a few good blows. If that doesn't work try a pickle fork, but it will defiantly mess up the backing plate. Also I know there's a way to take of the hub using a 13mm deep socket, but i haven't tried yet. Just search that option. So pretty much it will take you probably an hour or two, depending on how much stuff is rusted in there, Its not that bad though.
Good Luck and have fun