Hey guys need help with drawing!

I have a tool That I want to modify! I have the pictures of a tool and pictures of parts that I want to include in this modification. All I want is 3D drawing showing all of this parts assembled together. In few words to say I want to change the process from non automated to automated.

To be included in the modification:
1.Pneumatic cylinder that will move block back and forward.
2.Touch or press button (that will trigger air flow control valve on/off)
3.Air flow control valve
4. Proximity sensor/laser sensor (for counting cycles) ]
5. Protective box around the tool so its safe to use and nobody gets injured

Thanks for help