After thinking about repairs to my 109's middle doors, I found a pair for sale not to far away.
http://www.britrest.com/index_a.htmI had them shipped by bus in about 24 hrs. I was happy with the price, product and service.
my old doors had foam inserted behind the trim panel which retained moisture and rusted the frame. This then had body fill applied by a previous owner.
Now all I just need to do is match the faded paint and swap the windows/door handles etc.
-d.