Check out this link, and you can use the search function to find a couple of other threads that might help you -- search for 'hop metheglin'
What you propose sounds like it would work fine...I'd do a minimum of 2 weeks...I think I dry hopped my hopped meads for almost a month.
Packaged: Dark Munich Citra SMaSH, Mayan Stout, Caramel Quad, Basic Spiced Cider, Spur of the Moment Graff
Recent Meads: Mead Day '11 Ginger Metheglin, Mead Day '12 Traditional (orange blossom) Mead, Fresh Simple Cyser '12, Cherry Melomel, Belgeglin, Bochet
Secondary: Why do I keep this line here...?
Bulk Aging: Cocobochet
Planned: Hop Metheglin #3 (NZ hops), Trad. Gesho T'ej