photocopies will not suffice, you mst have the original documents.

you do not need to show anything at the 'ring. just buy a ticket from a machine and put it in a machine like a car park entrance. as long as your car is quiet and has a proper registration plate and does not have bits falling off, you will not even speak to anybody.

another tip, filming is not allowed. if they see a video camera in or on the car, you will be made to remove it.