Lots of the WA guys like the Delica 'cos they get to drive on the beach and go to pretty rugged and remote sailing spots a lot of the time which is when a Delica really comes into its own.
Here in Vic we're a bit more metro around the Bay.
I've had a Hiace, Mazda E 2000, and currently a Ford Econovan. All have been long wheel base and great for fitting heaps of stuff in. The downside of the Kombi is the engine in the boot. Obviously this stops you being able to have a rear shelf that you can slide stuff under (masts, sails, booms, tubs, boards etc)
The Econovan's and E 2000's are all over the place and you can pick them up pretty cheaply. A mate of mine got a good one for $3K, and therefore he doesn't have to stress too much if it has salty water in it, gets sand blasted at the beach or gets a bit rusty.
Many of these are on LPG (50c/L), and mine certainly goes into all the multi storey car parks (although you do instinctively duck down in your seat as you first enter

)
Mine has a bench seat in the front, another in the back (seats 6) and still has enough length to sleep in the rear section if you need to.
Could be what you need.