Here's a interesting lot of NOS Door fittings on Ebay
http://www.ebay.co.uk/itm/1971-1972-1973-mustang-FORD-UNCLERONKS-DOLLAR-BOX-NOS-DECAL-SET-IN-BOX-MORE-/322296230394?hash=item4b0a5a31fa:g:kSoAAOSw-CpYA9nI
http://www.ebay.co.uk/itm/1971-1972-1973-mustang-FORD-UNCLERONKS-DOLLAR-BOX-NOS-DECAL-SET-IN-BOX-MORE-/322296230394?hash=item4b0a5a31fa:g:kSoAAOSw-CpYA9nI