Finally got the door cards on. Actually I was told to get on with it by the missus
She is coming to Beaulieu with me and said it needed to be finished!!
I lost the photos of making the door cards, cutting and sticking on the carpet underlay but here is a pic of the card finished before fitting:

I used HomeBase spray glue to fix the underlay to the board and the vinyl to the underlay. Then a staple gun around the edges.
I gaffer taped up all the main holes in the door:

I dug out my clips from Mini Spares:

And put all the clips in:

I made a bit of a mistake with the first door card. I didn't mark the holes for the door handle and had a mare trying to locate the screw holes so on the second one I placed the handle in position.

And here it is fitted:

My foam was much too thick (9mm) and the handles were a bit tight and the surround for the door lock does not fit in so I may have to drill it through and use some self tappers.
The doors don't rattle now.