Types of paint to refresh my interior

On my '68 'vert I used base/clear on the upper and lower doors. It was much nicer than factory but it sure looked good. Factory paint would have been single stage. It probably was actually a medium gloss so the sun wouldn't glare off of it. If you don't want 100% gloss you could add a little flattener. I've duplicated the matte finish on the dash using Dupont 'vinyl paint' as it can be mixed in low, medium, or high gloss. For that application I use the low gloss. The factory paint on those areas was actually laquer, I believe. You can use Dupont's 'vinyl paint' on metal as well as vinyl parts.
Dallas