Hello, this is Colin.
It looks to me like the car was built with Mag hide as main & D.Blue hide, as a secondary colour, usually piping on a 73 as the dash was almost always Black Ambla though one or two were coloured.
Sorry I do not have a clue what the 98 is about but I will find out for you. It could be either Body colour or carpet colour.
There were two D.Blue colours, this one is a very dark blue, whilst A3209 as the royal blue colour. A3234 was a light blue, for those of us slightly colour blind it could easily be mistaken for grey.