Thanks all. I think a drill press should be my next purchase- getting the holes exactly right with a handheld drill is not easy.
I despite many years of using drills for work still can’t drill a straight hole.In fact the more I concentrate the more of an angle I tend to drill.So I have to take my hat off to you that is a great job you have done there.
Can't wait to see the next one (although I can't imagine how you'll make it better...).