Computationally, they should be no problem since we were doing A:M on way less back in the day.
The wild card seems to be the graphics. Roger had a laptop that worked fine for A:M until Windows updated something and then the shaded mode was always inside out.
4GB RAM out to be plenty. An SSD of 128GB ought to be fine
You'd want one that doesn't need a power brick when you want to plug it into local AC power.
A monitor out so you could potentially use any available larger monitor.
Two USB outlets so you can plug in both a mouse and full keyboard.
Pressure-sensitive pen input, because you might like to draw on it, too?
Can you show an example of what you are looking at?