I will add to my earlier comment. I own not one pair of shoes. Other than a couple of pairs of trainers I have boots. A pair of Timberlands for “good” the rest are bar one surplus issue.
Once over squaddies would buy their own boots especially infantry artillery etc. As I don’t know what they were actually made to fit. Certainly didn’t fit my feet I wore a size up for the width, length was never right.
I own a pair of cobbler made half sprung boots which fit like a glove. They will with care last years more and I have had them 15 years. Not my most worn since Altberg and Lowa issue boots came out on the surplus market. I have a pair of Lowa desert (Afghanistan issue) boots that are very well worn but still comfy but reduced to slip on to go round the garden mow the lawn etc. The Altberg I would happily pay full price for the Peacekeepers if I can’t find a suitable pair on eBay. My latest pair are brand new Haix ones. My lad was issued medium width maybe just a little tighter than I would like. The wide would be better, however a lock on the ankle lace point means you can have different tension across your instep and round your ankle. I haven’t had them long enough to comment on longevity.
I would happily recommend Altberg or Lowa as value for your money and suitable for wide fitting. The Lowa have more arch support if you prefer that and are possibly a bit stiffer overall. Price wise you’re looking at £30/50 for a decent pair of issued ones. New they are around £130/150 if you shop around.