I have the suit & shirt ready. I also have the apple, thanks to Kiichan!
Now I just have to get a bowler hat and tie. Most o fth ehats I've seen so far have been pretty pricey, so going to look at some fancy dress shops and cheaper shops shortly.
I am still wondering whether to strap a frame on back, along with a background. It would look good, but could be very unweildy at the Cosplay Ball? I'll think about that.