Ask Boris he’s recently had some done. He didn’t pay for it at first, but he did later, he says or summert
You missed ‘honestly’ staring, perhaps he realised he couldn’t afford it and couldn’t get a sponsor to initially stump up for it
Just paint instead. Last time I tried to hang wallpaper with the wife (20 odd years ago), it nearly ended in divorce.
Not sure but on a serious note I bought paper where you paste the wall instead of the paper & found it a lot easier to hang