Another good site for reference material is http://www.imperial-fleet.com/BBC/community Also there are two versions of the DH-17, the original version first seen in ANH as carried by the Rebel Troopers. The version used in the ESB and pictured in the Stars Wars Visual Dictionary has more gadgets attached.
could you send the plans and pics to me to. I am planning to make one out of wood or EVA foam and assorted materials and I need some measurements to start from