Any question answered...

Should've said, I tried TM Lewin and M&S at Moorgate, neither of them do them in store in my size (arm length is the problem). According to both I've got to look online.

Also, I'm not fat so high and mighty is useless as it's made for those who are wider than they are tall.

Are you wearing a tie? If not, don't worry about the neck size.

Unless you wear the top button done up with no neck tie. In which case, you should probably just kill yourself.