Can I put PC hardware in a MacBook Pro case? I would like a MacBook Pro, but they are so dang expensive!!! I already have a pretty nice Samsung Series 3 64-bit, and I have considered Hackintosh. Hackintosh however, does not include that slick outer shell, Force Touch Trackpad, and gorgeous Retina display. My possible solution: A pc with a mac barebone and hackintosh!!!!

If I purchase a replacement bottom shell, top case (includes trackpad keyboard, and mic), and a complete display for Macbook Pro 13 in Retina Display 2012 (Model # A1502) the total cost would be around $458.52- that's saving me a whopping $741!!!

Can I put my PC components into it, assuming they are the same type, the replacement components, then install Hackintosh and work??? 

The main worry here is if the logic board has to be genuine apple vs my current pc one fitting, this mainly being because a replacement logic board at used to its crappiest state is $436.46

(sorry if i went overboard w/ the bold)
The answer is simply No. Most Apple hardwares are custom designed for specific MBP. You cannot replace them with normal PC parts as they are generic. The PC parts are not custom designed. They are made to fit a wide range of common PC laptops.