Forgive my ignorance I seem to have over complicated things again ...

I thought a simple plane with a decal image that could be tilted/rotated on all axis combined with the zoom and pan options might have been enough to do a crude camera match. Being able to scale one side of the plane as required so as to create rhomboidal shapes to help with perspective issues.

It was just a thought, but as is often the case, a not very well thought out one - Lol

All the best Michael

Martin