Ok, the initial production vehicles were the first vehicles off the line and pretty much represented one of each type.
48-001 is a GS With Winch, IPV1, and is fabously known as the Bush Tucker Man vehicle from the first series. It is believed to be in service in Darwin still.
48-002 was a FFR, IPV2. It later became a RFSV development prototy[e and was later upgraded to the latest RFSV specivication under Project Overlander part 2a. Believed to still be in service.
48-003 was a FFR, WIth Winch, IPV3. Like 002 it was later upgraded to be a RFSV development prototype. It too was upgraded later again to the latest RFSV spec.
48-004 is a Survey FFR WW vehicle, IPV4. Not sure where it currently is.
48-005 is the command post previously mentioned, IPV5. Was later converted to a basic FFR. At the current auction.
48-006 is a Senior Commander FFR WW. IPV6 and currenty of unknown location.
48-007 is a Personnel Carrier. IPV7, also of unknown location.
48-008 is the first true production vehicle, a GS which they all ere unti 48-343 when they started producing the other models.