This body I just saw on Ebay is a bargain if you need floors, cowl, cowl inner, sills etc. Lots more work than aftermarket bits but worth it in the end. Just buy a spot weld removing drill and a small angle grinder to dress the bits and away you go. You could even cut it behind the rear door pillars and through the windscreen and dump the back half and chassis and store the firewall and front floor.

http://www.ebay.com.au/itm/HOLDEN-HJ...item1c270d3e07