I would just take a damp cloth to clean the outer and if you want to shine it up use an old t shirt or brush it if you like. Dont really care much for brushing though. Def use shoe trees for at least a few days just to clear it up a bit.
Here is the link http://www.styleforum.net/t/224463/viberg-boots/8205#post_7459192 Some very nice comparison pics. It is a 2040 last. The 2030 is more narrow at the toe but about the same at the widest point.