Im actually going to do it in my game. I will make the Feat packages a single feat slot that grants certain feats as you level up.
For example: Power attack at level 1, cleave at level 2 and great cleave when your BAB is +4. All for a single feat.
To prevent breaking, I maintain that certain packages must be taken at level 1 (fighter can take as bonus at 1 or 2).
I may roll all unarmed into one for those poor monkish fellow if one of my future players decides to be one...