There's a mixer INSIDE your DAW/Maachine.Cool, is a mixer necessary? Or is Maschine better?
Keep some cash aside... You might decide you want a pad controller (or maybe Maschine Mikro - comes with lots of sounds and the Maschine is just dope) or a mic (you just said 'beat'?) or a turntable (for sampling vinyl - although you have YouTube) later.
Made some nintendo vintage sounding simple beat on fl studio 11 demo....leaning towards fl11 or 12.....