i just typed out a really good reply and then i lost it.
hang it in a tree (take the fork off) with coat hangers. put one through the brake hole in the fork, and one through the seat stays / top tube. tape off what you wanna, make sure you cover holes and keep threading clean. go over the frame from a nice distance, you don't want the paint to drip. try to nail it with as few coats as you can, but make sure the paint doesn't drip.
i used a matte finish on mine and it's decent. rusto makes really good stuff for doing bikes, and there's some stuff now with a pinstriping pen.
let it dry and you'll be good.