Nick, this combo belongs to Mark Taylor from the WA Club. He has a shed full of old Holdens and caravans.
Marks FC wagon has a host of Nasco and period accessories incuding vacuum brakes and a water bag holder
Mark is planning on driving this combo to the Nats next year with a few other WA members in convoy
You can check his stuff out on a web site started by him
www.vintagecaravans.com Its has a section on his cars and caravans as well a caravan forum similar to this one...worth checking out for the caravan pics as well as the varied makes & models that tow these vans