Give Red Arrow, Great Lakes, or Magnum a call, I believe they may have them in stock. They also turn up from time to time on ROL, and eBay auctions, but usually go for more than you could buy them from a vendor for.
stewart:
we fly at our year around flying field, the Old Hardin County Landfill site.... We have a 5K waiver there....look at the website for directions on how to get there.....
its a field we share with the local AMA club (they have a 500ft x 50 ft grassy runway there)....
dimensionally its sutiable for LARGER(heavier)GHI models depending on weather conditions as the field itself is long ( maybe 2 miles) but thin(maybe 1/4-3/8 mil wide)... so as long as the wind is in the long direction you are okay...say ssw to nne.....which is the prevailing winds here...