Inline installation is less about volume and more about making one visible side do all the selling work.
The layout has to stay tidy enough that the staff can move without stealing space from the front read.
Lock the aisle face first
The visible side has to be strong enough to stop traffic on its own.
Once that face is right, the rest of the build can stay small and honest.
Keep the working side quiet
Inline booths do not get a spare side to hide clutter, so the access lane has to stay thin and predictable.
That helps the staff work without making the booth feel crowded.
Leave the footprint readable
The best inline install makes the message easy to see and the circulation easy to understand from the first glance.
If the booth starts trying to do too much, the one-front advantage gets diluted.