Had the seats out and taped up wherever necessary, I'm thinking a lot of crap is coming in at the tail end where the leather retainer is, I'd thought about shaping some sponge rubber and placing in at the tail of the luggage compartment and washing out periodically, wondering what others have done.
Also it is apparent that a lot of dust is coming in where the seatbelts fit through the top of the seats, any suggestions on this would also be welcome.