Army surplus is hard because you need to figure out your location and sizing in order to buy. I have done a post here about them so you can check that. So in my case I know my sizing in a specific kind of Canadian boots that I can get here but you wouldn't likely be able to get them easily in another country.

But if money was no object I would get something like this myself.

https://williamlennon.co.uk/shop/mark-v-canadian-combat-replica-boot/

Traditionally made, by a traditional maker. Can be fully repaired. Something like that should last years of daily wear and then you can resole it and keep wearing them. But there are many options like this depending on where you are and the specific style you want.