Hi Stewart
See this link, a photo of my setup is on page 6.
http://www.talkmorgan.com/ubbthreads.php/topics/339575/Airbox_-_Help_needed_to_identiThe K&N filter fits very nicely after the original set up, and mounts with the help of a large hose clip to the existing S.S. bracket for the old air filter.
Have routed the cold air intake via home made box to the louvers just forward of the windscreen. Not sure it would work so well with aero screens?
David.