While I agree with Bob as far as asking the printer, I will confirm that you are going to want to send two files, one for cover and one for the body of the book, and both should be single pages, not spreads. If you are going to need bleed anywhere on the inside pages, see InDesignSecrets » Blog Archive » Breaking Pages Apart to Bleed Off a Spine. You only need to do this when the item to bleed does not cross the spine. As for how much to allow for binding, my gut is about 15 mm in addition to what you want for an inside margin, but the printer should be able to tell you. You'll want to set up the body as facing pages, but the cover may be easier as non-facing. For two pages it really won't matter much.
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