This can be done straight out of the box with a Raspberry Pi. 

Raspberry Pi has HDMI output that can be directly connect to the HDMI of your monitor.

The Raspberry Pi USB port can be connected to a multiport USB Hub to provide access to your 8 or more USB ports.

For the keyboard and mouse you can use some of the USB ports.

If the power supply of the monitor is sufficient, you could power the Raspberry Pi and peripherals with it too.

Then you can use your monitor power switch for everything.

If the power supply is not sufficient which is most likely the case, then you can use one a master sensing power board.

You can connect your LCD monitor to the master socket and have the Raspberry Pi Power supply driven from a Slave socket.

Be very very careful if you are dealing with High voltages! Make sure all safety precautions are met to guard against electric shock.

Once you have it all working then you can encapsulate the "Notebook" with your own custom designed box.

If you want to use a wireless mouse and keyboard, just connect a wireless keyboard/mouse dongle to one of the USB ports.

I foresee this project mainly consisting of a lot of wire harnessing work.

I hope this helps you!

it does a little bit but id like to see it done because i dont know the first thing about using a cnc machine and i cant afford classes for it right nowand i cant afford to buy a cnc right now. so i want to figure out how i can do it with mundane items i found out theres a wifi module for the RPi so i got the wifi figured out but i want to be able to intergrate the keyboard so that its attached as an onboard instead of using a wireless one i already plan on using a wireless mouse that i have but i wanna figure out how to take a modern wired keyboard and wire it to the system and shortening the cord kinda like a keyboard on our current laptops. for the power supply i was going to use his block form that he did on one episode that harnesses multiple power cables but a smaller version to handle just the powering for the RPi and the hubs and then an outlet for the monitor because the one i presented in the link has a small powercord i found out from a buddy who has one of them. but for the case ive got some parts stripped from a printer i had that had tactile switch and the main panel that i can mod to not have the other controls on it.

oh and on a side note i would love to be an apprentice of ben's so that i can learn everything he knows be it for modding or on pinball, etc.

We recently did a Raspberry Pi build but don't worry - we'll use one again!

The Atrix lapdock makes for an inexpensive yet impressive Raspberry Pi laptop.  However, I think melding the Pi with the lapdock with good aesthetics could really use your skill set.

is there a way though mr fustini where the raspberry pi would be able to be nestled inside of the lapdock or attached to it somehow so that it doesnt get damaged in traveling and so that it doesnt have to be unhooked everytime you shut down cause i would like to get it to where all i have to do is hit a power button and everything starts its run without having to do a breakdown and reapplication everytime i want the laptop to be used? and i was considering a lapdock but i was also wanting to build it completely custom case and all its just im not at full par with other modders when it comes to using cnc and such.

i edited the original post because i found a better monitor of the same size and brand but cheaper