Wet sanding and polishing can get rid of most of the orange peel and sags. It won't get rid of the dirt specs unless they were introduced on the last coat of clear. Worked on mine and the paint is silky smooth now. I had 2 dirt specs, they are still there...but only I know where LOL.

Cost of my paint job...

$660 worth of paint. PPG BCCC
$1000 for booth and painter (paid booth, not painter)
40 hours to wet sand sags and orange peel and power polish back up. (Self done)
Have to repaint trunk one of these days...

I did not pay the painter as he did not deliver as discussed. I painted the jambs and trunk lid inside etc, and my work was flawless. Next one I do myself in a rented booth!