The base in the picture you are referring to looks like the Games Workshop flying base from the plastic stormtalon model, I haven't found any templates to make card bases, not sure what you should do
The models themselves are really just designed to a scale which will make them look reasonably practical whilst next to a foot soldier, but also be not too big and end up obscuring a large portion of the table.
Great model Daishi, i should give that a go as it would make a good companion for my paper marine. Also does anyone know the fate of the "WH40k armor" thread? i'd like to have some way of finding out if there are any new models.