Do you need colour, and is 10'' enough for you?
I just checked the current products from Onyx, and you can have e.g. a "Kaleido 3" 10.3'', 2480x1860 300 DPI (1240x930 150 DPI per tint) in the "Tab Ultra C", for ~600 coins.
https://onyxboox.com/boox_tabultrac
Very probably VNC or better Remote Desktop tech will work on it.
Bring your laptop and your tablet, make the use you need.
The problem: if you keep them cable connected, you'd be straining the laptop battery...
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Or, Linux on the tablet (maybe via Termux, you can also get a desktop environment).
Or, Android directly, with a BT keyboard...