I think what I'm going to do is just buy an off-the-rack frame, use The entire uncut steer tube of the fork, but instead of "no spacers" (like Sheldon photo in post #1 above), I'm going to find one long piece of the stock that they cut the spacers from--a piece about 9cm long, and use it as one big spacer. That should provide sufficient support.

Do any of you guys know where I could find this spacer stock? I'd like to buy 3 pieces, each 9cm long, to fit 1 1/8" steer tube. That should last me the rest of this incarnation!