[Uwon]

More than a year ago, my tub and panels were all taken down to bare metal followed by e-priming and sealer. Door jams, inside trunk, engine compartment, were final sprayed with Glasurit 22. I was going to install wiring and mechanicals and then go for final exterior paint but changed my mind as I did not want any paint dust on anything. So finally I am now ready to send the tub back for final paint. Question I have is, what is the appropriate procedure to get a real nice finish free of orange peel?
The body shop suggests final sand/prep followed by two coats of 22, sand again with 1500/2000, final coat of 22 and then buff/polish. Is this a bit over the top?