I think we will instead reduce to just items marked † and try planting from our own #allotment harvests of Kingsland Wight and Longor shallots. It would be great if we can build up numbers of these to be self sufficient with them. (Much worries about quality and disease?)
We were already planning to switch to onions from seed because all red onions we try from sets bolt - so will experiment with that this season in the hope of replacing the Autumn Champion with a variety (or two!) from seed.