You don't really need the handle, you can get the internals out with a punch but it ain't good for the hub. You could clean all the inside up just by taking the driveshell out but it wouldn't be as thorough and a pain in the balls.
In regards to the lube do what adam does in the tarty video. A bit of wet lube. Or there's this video that explains making a lube that's ultra thin:
If you run the hub completely dry it won't do it any good, imagine a bunch of metal rings rubbing against each other. Not ideal