Jeff has it right... you'll need the 109 SW rear body and middle row doors.
If you get a Defender style windscreen, you can most likely bolt the 110 parts onto your series with little or no modifications and have a taller windshield glass to go along with it.
Post a few pictures if this dream becomes a reality.
Uncle "Richard" Douglas has a Land Rover with big wheels that never gets stuck... until he breaks something so it won't go. Uncle Douglas always breaks something. - Anna Crowther at the Conclave 2012 (AKA Carburetor Neck)