I have WWW on my Road King Classic and when they are clean they look pretty good. The problem is they are so hard to keep clean that they rarely are clean. Total PITA to maintain. I'm thinking I might lose them when its tire change time again.
Same, at least I'm thinking of thin WW. OL wants me to keep WWW, but she doesn't help with the cleaning.
I think whitewalls look great on certain bikes. My RK Classic is one of them. A little Bleach-White, a magic eraser, and some water will keep them looking good.
I wouldn't put white walls on that bike. It's too aggressive looking and white walls would not look right in my opinion. Also, aren't you afraid of rocks or other debris flying up and hitting you in the face without a fender? One of those tire huger fenders would look good.