Good for you, but be prepared to pay loads more when you have to buy special British versions of all building materials, or accept shortages of items.
Do you really think a window manufacturer is going to build new machinery just because some people who want to live in the past want to buy a six-foot window instead of a 2-metre window?
Or do you just want them to rename to 2 metre window on British packaging (6'6.74"!) and websites, for appearances sake, which would really just be weird, like we were all playing a game of 'let's pretend we live in 1950'? I guess we could all wear vintage costumes too, and drink mild.