I have a dalite ceiling mount, one of the cheaper ones, and I didn't want to mount it straight into the drywall either, so I just got a long flat piece of wood (like 1"x3"x80"), and screwed that into ...
Being able to project an image on any flat, or flat-ish, surface is one of the greatest strengths of any projector. Most modern projectors have built-in streaming and at least passable speakers, so ...