Here's a rule of thumb:- A 1Nm motor on to a 5mm pitch ballscrew will lift one fat bloke off the floor.

Assuming 1 fat bloke = 282 lbs

Substitute a 0.5Nm motor or a 10mm pitch screw and you can only lift half a fat bloke. The maths is easy.

Wide ball screws are used where you need long travel or massive power.

You don't need either so a skinny ballscrew and dinky motor will be fine and dandy.