This is way too open ended. You must understand that this will be quite a project involving countless hours of design, fabrication, scrap, start over, etc. I am not qualified to design an entire machine, there may be patents that you will step on, etc.
Frankly, there are plenty of machines out there that will be a lot more cost effective to purchase and modify to your hearts content.
Good luck.
George
(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)