Thanks for the great replies.

I have a month or so until the next issue of the mag, so I’m going to go sit in a darkened room and digest what I’ve read, and give Jongware’s script a go.

If I don’t make progress, I’ll do a ‘half-way house’ of using several Word import maps to do most of the work for me. (The incoming Word files are reasonably well structured and InDesign does a good job at importing.)