Thanks for the spoke suggestions everyone. Most shops on the planet may have long spokes, but I called three (admittedly rural) shops and struck out. I'm making a trip to the BIG CITY this weekend, and I'm hoping for better luck there. The worst case is I order a box of 100 DTSwiss Champions and respoke the whole wheel -- which might not be a bad idea. Thanks again.
Mark Barnes
Astoria, Oregon USA