no 6, your Dormobile interior is infact...... a Dormobile interior, believe it or not!
As you are finding out, the particular Dormy you have seems to be quite rare.
When I was little, a parent of one of my class mates did the school run in one of those, and that's how I remember it.
It was many years (like 30 ish) since I saw that type of interior again, and that was in the David Eccles book of VW campers and interiors, which I got at Christmas.
To give you some more details from the book: The 'normal' Dormy interior we see is a D4/6 interior, whilst yours is a D4/8. It was designed as a people carrier, as the camping units such as wardrobe, cooker, wash basin etc were removable. The cupboard with the sliding shutter would have sat on the engine deck on the offside.
So don't rip it out! You have a rare Dormy indeed!