Anyone know where to buy a reasonably priced triple-tree style headset/fork for bikes?

Alternatively, anyone know of a good way to make one? I'm thinking of using the top cup, bearing and race from two threadless headsets, and putting one on the top, and one on the bottom. Then your three-hole bracket would fit onto the top and bottom of a piece of tubing sent through the headsets, and would be held on with star-fangled nuts on both the top and bottom, each tightened down to set the bearings and hold the brackets on. Then your fork tubes would come up and attach to each bracket on the top and bottom of the head tube...

Shouldn't be too hard as long as you can fabricate the brackets, and it would give your fork a lot of extra strength. Any ideas?

peace,
sam