If I understand you correctly your plan is to have an all - in - one drawing system. You want to seperate the screen from the base and create a Wacom sandwich. for example: Screen at the top, Wacom tablet, and the base of the laptop at the bottom.
Nice idea, although might be quite heavy by the time you're done.
Yes it is exactly it. I thought of making a cintiq without modification of the intuos with, just a screen above but I am afraid of having many to jitter and of step to know how to remedy it