It would be better if I knew where you are, but some professional jobbers that mix paint (PPG or DuPont) may have the interior color in their mixing data. I prefer PPG over anything else, even if the other was 1/2 price. So, going by that I'd recommend PPG's Shop-Line product and order what you need in basecoat. Also get 8oz of DX57 hardener. You mix the base and add a cap full to a ready to spray QT (paint and reducer, 50/50). This will net a low gloss and durable catalyzed finish. The other option would be be clear urethane with about 25% flattening agent, but you really don't need the clear if you add the 57 to the base, especially since it's the inside. A qt of base gives you 1/2gal ready to spray. The color doesn't appear to be that difficult and there's probably an exterior color from a current car that would work well too. Hope that helps.