If you do not want stators, you can use counter rotating blisks.
Also, CNC machining of a small blisk will not work, at acceptable rotating mass and flow characteristics, because every usable material would deform at the blades.
There is a way though, its called Electric Discharge Machining (EDM).
http://www.bladonjets.com/technology/gas-turbines/ probably builds the nicest small gas turbines. They use EDM to to machine their blisks.
http://www.bladonjets.com/technology/blisk/