What I wanted to do, was buying a defective notebook. Fx the 7” asus eee.
Then modify it for a computer card. As you clarified, cannot be done.
Your list, maybe not the full list, is about
battery
screen
keyboard
touchpad
audio
On several locations you can buy a notebook 7 inch.
https://reseller.alibaba.com/product-detail/7-inch-mini-UMPC-7-inch_60434390797.html?spm=a2700.7782932.1998701000.3.lzmuAA&spm=a2700.7782932.1998701000.3.lzmuAA.
It appears to be a common manufactured cabinet. Mainboard may differ.
I do not know if seller has the source software for the hardware devices and
will turn it over to buyer. Let us assume he will.
If the cabinet comes with compartment for battery, but no battery. With
display. Speakers. Touchpad. Keyboard. Could a computer card notebook then
be made with electronics that are on the market and a small price?
