I'm thinking of converting my audax/ bikepacking rig (specialized Diverge) into a cross bike for the winter, having never raced any cross before. So essentially what you want to do, but the other way round. In its current guise I would probably describe it as a 'racy gravel bike' so hoping that helps.
As far as I can tell, I need to ditch the mudguards + dynamo, swap the tires for something a bit knobbly, change the pedals to non-road spds and maybe drop the stem a bit. Anything else I'm missing??