Hello again, Tom,
I’ve had good results shooting with fixed ‘soft box’ lighting in interiors; try to set up lighting for each part of your scene, using the natural segmentation suggested by your environment. Of course, you do need to move the lights after shooting a part, but if you’re using bounce light as fill, the feature detector should be able to pick up correspondences across parts.
As Götz pointed out, a strobe mounted on the camera can work, too. It will make feature detection more reliant on shooting with higher overlap, but that’s not a bad thing. The problem with a strobe fixed to the camera is that, for flat ‘featureless’ walls, changing the camera+strobe angle relative to the wall usually radically changes the features detected from shot to shot. SIFT and other feature detectors try to be lighting invariant, but as I noted, correlating features for varying light on a flat wall is a poorly posed problem. If you can make it easier on yourself with static lighting setups, you’ll likely find you’re getting much better feature correlation between views.
I’d love to see some examples of little trials as you go! Break a leg!