You could have a conveyor system which would cover 5/6 directions without too much trouble, and it'd be fast enough for real-time capture. Or you could automate

You could have a conveyor system which would cover 5/6 directions without too much trouble, and it'd be fast enough for real-time capture. Or you could automate the most common purchases e.g. Amazon basics items, Kindles, electronics. They could even ask sellers to provide models or dimensions.