[Izkata]

> which is just the right distance away from said wall (based on the projector's throw) and at the correct height and ideally centered to the viewing area

I bought a relatively cheap one around a decade ago, and this is adjustable on the projector itself. It's not nearly as difficult as you make it sound.

[sumtechguy]

Setting up a projector is easy. Getting to look good... That can be an interesting trick with many of them.