I was wondering about the top box as well, I had the same one on a 125 and it completely swamped the look. I also bought the smallest one that still held a helmet and a little more.
As you say, the tyre and muffler help balance the bikes look and I too think it works.
They fit white fenders to the model, regardless of the tank / panel colour. They are white plastic and unpainted- which makes me want to have them dipped, maybe carbon fibre look with a blue tint to match the rest, or a complete re-finish of the whole bike in a camo look?
Thanks to you and Spud for confirming the oil glass situation - not sure I would like to try Spud's way, knowing my luck, I would tilt my head and the bike would fall on me
Jeff