I was in London and England back then (same years) but as a tourist for 4 months. Same era as you. More spent in Denmark.
That was a rough time for me and the wife. My last year in the AF, third COT and got about $600/month as an E5. The rent was 100 pounds and the electricity, rates and all that pretty much relegated the wife and me to hot dogs and Stouffers macaroni and cheese (it was 25 cents then) so we’d have enough money for the baby’s food.
There was a potato shortage (both at the commissary and local levels) then and prices shot through the roof. I still remember to this very day how one day the wife took our son out for a walk through the little town and she was pushing it down a lane with rough cobblestones and a local farmer drove by with his cart full of potatoes. She correctly guessed that some would fall off so she followed it. By the time she got back home, the little hamper part of the pram was full of dropped potatoes. We both thought she’d struck gold! :0)