Yeah, I'd be finding a good local wheel builder who can make something to your exact specs. As others have suggested I would also invest in a truing stand and a spoke wrench, that way you can true the wheel yourself when it inevitably happens again. Ultimately it will be money saved. There are a bunch of videos on YouTube that explain how to true a wheel, and it's not as difficult as you might think. In fact, you can practice on the old wheels until you get your technique down.