I just ordered new (to me) wheels from Woody's .
I called and talked to Zach about the handling characteristics of 19 vs 21 in fronts. Turns out they had a slightly used set of oem hubs laced to Behr 21/17" tubeless Rims. Not quite as strong or blingy as Superlights, but I think I'll be ok. I haven't manage to break my cast wheels no matter how hard I tried.
I'm going to run K60s with the stock front fender for now. Zach told me he is going to fit a supermoto fender to the shop mule and see how it works out. I'm (not so) patiently awaiting the arrival. I'll post pics when I get them fitted.