Lorn -
I completed my cowl last November 1st and just recently got it back from
finishing and painting...It's beautiful!
Last Summer, I visited George Lee who's building a 320 at a nearby airport.
He had purchased  the longer engine mount and cowl several years ago and his
original cowl was sitting unused on the shelf! He said that I could have had
if for free!!!
You could get it from him if you ever need one.
Bill