I should also add to that ironx.. I was going to save it for another detail but your right this hasnt been done since 2008 so the clay will take forver.
You are wise to consider the Iron-X.
I used Iron-X for the very first time on my 1997 Tahoe on Sunday. I did only the hood, and roof for now.
To tell you folks that I was flabbergasted is a gross understatement! The first words out of my mouth were OMG! I was seeing a "sea of purple"!
While my truck has been clayed a number of times over the years, it's never been Iron-X'ed.
There's the good possibility that the Iron-X is now pulling out what's been imbedded in the paint since the vehicle was built, and shipped.
For sure, Iron-X will now always be in my stable of detailing goods.
While Iron-X will help keep your clay a bit cleaner, you will still need to clay, to remove everything else that the Iron-X won't.
Let the "Plastic Baggie Test" be your most imprtant guide, not just your eyes, or bare hands. When you have achieved a glass-like feel on every square inch of paint after Iron-X, and Claying, you are now ready to go onto your following personal choices of polish, and protective products.