For a Captain Phasma figure, I'd probably paint an Arc Trooper silver. Cheap, comes with a rifle and a cape, not the right kind of cape and not a female, but it should work well enough. If you want a female, complete with cape, for a few more bucks you could pick up the Mandalorian Gunslinger and paint her silver. She uses two pistols, not a rifle and her helmet is more Boba Fett than Clone Trooper, but you simply can't have everything here.

I've added a new Captain Phasma deck, but left the original for those who enjoy that mechanic. This one was inspired by how Jango Fett's FLAMETHROWER causes damage and movement, and is all about manipulating your opponent into position to get the most out of Phasma's attacks. The Flametroopers are nasty minors with a Minor Orange deck, and her damage potential is quite high. MAKE THIS PAINFUL and STAY SHARP is a nasty piece of business, but using YOU WERE ALWAYS SCUM off of it makes it a brutal piece of business. Let me know what you think!