Your priorities true originality? Or just "good enough?"

$140 or less if you shop elsewhere gets you brand new booster and master cylinder that looks really good and works great:
http://www.getdiscbrakes.com/g100305

If originality is paramount, spend extra and send yours out for resto. The Eastwood spraypaint duplication process would frankly be my last choice, and I think you'll be disappointed in the results vs the inexpensive cost of a new repro/replacement with proper CAD coating.