Best bet would be to get either a set of dry transfer or wet transfer decals. Most gunpla hobby shops carry these, although they would be more generic rather than model specific. Not sure if Bandai do model specific extras. I've only heard of bad things with regards to the normal decals. Even with top coating, the seams stick out like sore thumbs...
edit: This shop carries the decals. Described as "fine wet-transfer decals", by Bandai.
http://www.hlj.com Make sure you search for 'bandai decal' in the top left box.