It's actually quite easy to change the dash panel, it's only about 8 bolts. The airbag is bolted to the dash top with 10mm nuts and has one electrical connection.
I can do this job on an S-Type in a couple of hours - ask ST_ONE
You will have to take the centre (radio) panel out though. That's the hardest part because you need a special tool to remove the radio!!!
You could order a new dash panel from Ford or wait around the scrap yards until a grey one becomes available. Or even someone on here might want to do a swap, you never know??
Do not take your blue one off and have it covered with a black material or sprayed black as you will affect how the passenger airbag deploys
