Adding a shelf to the backside of the basement ceiling drop that covers the heating vents. Will be visible to those standing behind the bar or a nice surprise to those sitting at the bar who can see it reflected through the mirror.
Will be 18 feet. Using prime select pine 2x4 for lightweight strength. Anchored using hidden lag bolts through the board into the box out support framework. Bolt heads will then be hidden by a end cap trim piece for a true "floating" shelf. I'll paint white then screw down some lengths of 40" Atlas O track.
Here's an early eyeball viability check...
Figured if I ever sell the house, it will look like a normal shelf for the next owner to put bar bottles, cans, glasses etc... On.