Tin requires furring strips and would lower the ceiling even more.

Consider using "Anaglypta" wallpaper over thin drywall for the tin look without the added hassle.

Depending on the dimensions of the room, a smaller pattern would make the room look a bit larger. Also, you can choose a crown molding that doesn't take up precious wall space. For instance, we have one that is only 2" deep. If you choose a ceiling pattern that lays more flat, such as our pattern #200 (see below) it will give you that look you want without crowding the air space. Alternatively, you can just add a pressed metal medallion to the room's light fixture or border the ceiling with a cornice only without doing the whole ceiling. Paint it white to reflect more light, but you can also clear coat these to keep the natural tin look. See more of our products at wfnorman.com.

I’m no professional, but I think it’d be cool! We live in nyc and know of a few cozy bars that have tin ceilings (and cozy, strategic lighting), and it’s very vibe-y!