Tuxic is right. However you will face one problem running raspbian, instead of Ubuntu based distro, it wont have Berkley DB 4.8 available from repositories, and you have to build it yourself, so you need to do a little research.
If this content receives good feedback, I might also make a raspberry PI guide, as I have couple of these laying around. :)
RE: How to setup ChainCoin masternode on a DigitalOcean VPS