Hasta La Motion!

I may be overlooking something obvious but running into a few issues.
I can use Project3D and Apply Materials to a card and it displays correctly no matter what angle or distance. (Stays the same size)

If I use a DisplaceGeo using a depthmap then I run into issues of the depthmap not lining up. I’m assuming this is because the differences of simply projecting versus UV.

So I switch the UVProject which lines up better but now the image seems to be changing size in the areas that are shifted from the displace.

Is there a way I can use a 3D generated depthmap to do a real 3D displace (displaceGeo) and have the image be the same size throughout but simply offset in Z so a camera slightly off axis will see that z difference?

I know I can fudge by using iDistort but I’d like to get an accurate representation with the correct image at the correct plane.

Thanks.