Drop Down Fridge Slide in Vic

Hi Guy's,
I am posting this on behalf of a friend who owns a Holden rodeo twin cab 2003. He has been looking to purchase a fridge slide that is able to pull out and drop down to around tail gate level. He has found it diffiucult to find anyone in Vic who he has been able to show a working droppable slide in action. The question is ......does anyone know of any buisiness in Melbourne or within a couple of hours Nth of Melb that maunfactures and sells these items. Or, ..... has anybody in the area have one of these items fitted that would be happy for him to organise to look at their drop down slide, and for him to find out what you think about it....and to see if it it would suit him?.

Cheers,
Mick