Looking good, I also want to paint my interior black so this is actually really helpful. Figured I'd order some of the SEM paint since hear it works best. How man cans did you have to order for the entire dash and center console and what procedure did u go through? Did u sand, or clean anything a certain way?
Take everything out of your car, Take each panel apart as much as possible, throw it in the bath tub and wash it with normal dish soap, hot water and a sponge with the scour pad on one side. Wash the piss out of it, and rinse it good. Let dry. then spray. Vinyl paint, which i wouldnt use, I would go with a dye, which you can probably pick up at your local autobody store, has chemicals in it to help it adhere. there is no real need to sand. But its got to be clean. Years of body grease, food grease, armorall, smoking all that, sits on the plastic. If you dont get it off the new color will always peel. Prep work is the only way to get a good look.
And JMO, i would ditch the orange for something more factory. I did that to may dash in 1996, litterally, and after a year or 2 it looked like dookie and I couldnt get it off. But thats just my 2 cents from an experienced point.
Good luck.