Most of time chronic shortage of room leads to unconventional solutions and the combination sanders features that way of thinking. Two thin disks and two drums improves the power tools inefficiency as regard dust collection as well as noise or versatility. In fact I just added some operations to the combination machine that purpose rough sanding from 40 to 80 grits. I keep using the random orbit sander and always complete by hand.
What follows is founded on the ability of the variable frequency drive to reduce the speed of the planer, saw and spindle moulder. Because of the wagon carriage I had to go through the whole process of making a sanding disk on the table saw, as you may find out clicking there or on the below photo.

The spindle moulder accommodates a sanding drum or a rigid aluminium sanding disk working as a thickness sander.

The sanding table that uses the planer motion and dust extraction can sand large boards and coves as well.