Hmm. I've never done staking at low levels like that. Maybe a mage boxer? High defense and high mage. That could require getting 11 prayer or whatever it is for ancient Magiks.
For melee, maybe 60 30 60 w/1prayer? I'm not too sure, again I've never staked at a low level like that.
Maybe a ranger might be an option, I've never done range staking so I'm not too sure.
Sorry I'm not much help =\