Allan, I have the same issue, but thankfully winter is about over for this year. There was a variety of footwear on display at Bretti last time, one regular seems to have some nice insulated boots that look sort of like apres ski boots. I have heard that the Aldi apres ski boots are good if you can get them. Now might be the time to look for end of ski season sales. Snowmobile boots would be ideal but probably only available from Canada. I used to have some snowmobile boots and wish I kept them. Let us know if you find something warm and comfortable.
Btw last trip to Bretti I used the chemical packet handwarmers, available from most outdoor stores, and they really helped warm my toes at bedtime after standing around in the cold for hours.
Update, you inspired me into action. I bought a pair of XTM apres ski boots today online.
https://www.snowcentral.com.au/produ...re-boot-adult/