thanks! happy to keep the original around, and will try as you suggest - roof down, good background etc.
one random thing that occured to me is it would be neat if there was a way to provide hints as part of the synth process... have a 3D space we can drop objects in (cubes mainly I guess) and indicate roughly where an photo would align. For a room you would plaster the photos around the inside walls, for a car position them around the outside. obviously larger spaces / more complex spaces would require a harder to navigate space for hinting, but in turn it could be used to generate specific fly-throughs (oh, if you need the original images just ping me - MS alias is "jecath")