More good news, there's actually quite a few of these exhaust shops here making these headers, I just bought one for my 98 cab/tray Courier - but be warned that they changer the profile post November 98' so you apparently need to get the earlier profile header for 90 -Nov 98 models. Here's the later one on sale with advertised WW postage for a bit less than before btw !
http://www.ebay.com.au/itm/FORD-COURIER-HEADERS-EXTRACTORS-2-6lt-1998-to-2007-/262401164226?hash=item3d185403c2:g:sg8AAOSw3xJVXUMO