Small cnc milling for aluminium

[Brett]

Hi all, I have been looking around at cnc machines, small ones that all seem to be edngraving/cnc machines, for my use it only need to cut aluminium billet and the max billet size will be 150 square. I would need to cut all sides but don't mind stopping and changing the billet to mill other sides, would yuou build opne or buy one of them cheap ones, also I would like it to not be fast but not take hours either, what would be your advice and im most stuck on the motor spindle I would need to cut aluminium.
Cheap as possiable would be better but will be getting parts over time aswell.
Thanks for any help
Brett


Also I would mind covnverting a drill or somethink and making the bed movable as the things I will be making are not hard or have any crazy angles to cut so could be done by hand.