I think you will be just fine. Canít recall if I had a sheen but the steps you have taken so far are good. Remember to mask the perimeter a little bit below the factory line so that the new paint overlaps the clear coat a bit to seal that edge. It will help to prevent future clearcoat lifting.
Steven & Laurie
2006 Moncaco Executive Ranier
Detrioit Series 60 (515HP), Allison 4000 series