The first post of a forum thread is always the easiest to find. Then there was the PCB version, here: SSMH PCB
The 12AU7 variant has been stored for posterity here:
As for the BOM, etc., you can find it on that site (except the PCBs are no longer available). In addition, the very first post in this thread has the original schematic and the original BOM. Almost nothing has changed from that, except the addition of some bypass caps, differences in volume pots, and your choice of heat sinks. If you go with different tubes, then as stated, the 12AU7 version is archived above.