Ought to be able to get into a frame and body set for $5k or so. Now that frame crafters has the jig it should be much easier the second time out. Even so it may be hard to justify depending since there are other special frames out there, some much lighter and more proven for our bikes.
Don't lose site of what this is all about. It's all about 1975 racing frame, that was state of the art for 1975. The odds of you seeing a real HB1, never mind own one is slim to none. Even the Barber museum doesn't have one.
Call it a clone or tribute bike. That's what it's about.
I disagree, I know what you are trying to say but its only a frame, its not original, its a copy, there are a few frame makers making replica race frames for around 5 grand or less, some of these frames ,Harris F1 replica's for example, are far more complicated to make than the HB1 Frame, they are made in chromoly or Reynolds steel tubing, are brass welded and are under 5 grand to buy. Its great to get all nostalgic about it, but it is only a frame..