I think you could just order the broken part replacement. Try calling Lehmans, and then **carefully** do it yourself.
The wind trick happened to me also, but I was more lucky to have it on grass and mud - so all I lost was a cheap umbrella (the softbox survived a similar fall)
I must say Konig stands are barely suitable for indoor use. Outdoors, a stand should be more like 190xprob aluminium triopd (wide legs spread and heavy)