When I did Royal Arthur one WAFU suit was on its 3rd consecutive leadership course. When inspected in my no1 he said your suits a mess my course instructors said it's better than his no2? Submariners was muttered?
Phone Nelson clothing stores, they'll advise you on the full wedding rig and also provide you with a new silk with a white bow on it as opposed to the black one, but at the end of the day, wear what you think the Mrs will be happy with as long as you don't outshine her!
Ive been told by numerous people including the bish, drill staff at my previous establishment that white belt, and scabard are things to wear. The gaitors are only if you have boots. I wont be wearing the gaitors as i only have parade shoes