How to clean exterior finish that’s been sitting in the sun for years

[Luke87gt]

Hi guys, when I bought my 69, it had been sitting outside in the sun for years.

Overall the paint looks pretty decent but it’s got some oxidation and pretty rough to the touch.

I’d like to give it a thorough cleaning. What do you guys recommend? Clay bar? Polish and buffing wheel? Mineral cleaner?

I’m all ears here.

Also, on the passenger side, the steel bolts holding the side mirror rusted badly and this rust would drip down the door for god knows how many years in the rain.

Any recommendations on how to get that stain off the door without harming the paint? I’ve included a pic below. You can see the stain on the passenger side door.

Thank you!