Mini camper ideas

We are planning to purchase a mini camper for our daily commute but more important to be used for our camping trips.

We are not looking to build something up ourselves but we like the idea of a conversion kit. You know one of these already made storage and bed systems which can be relatively easy removed from the car. In Australia we are very limited with these kind of set-ups and all we have seen so far is the Vanessa system for the VW Caddy Maxi.

I have searched the web and I have seen that there are other systems out there, especially in Europe.
So here is my question does anyone have a mini kamper, e.g. Renault Kangoo, Citroen Berlingo, Peugeot Partner or VW Caddy and any recommendation for a of the shelve conversion kit. We are happy to import a conversion kit to Australia and are open to any mini camper as long as it is available with a diesel engine.