Thought I had spares of those, I looked and turns out I was actually short the small tapers and needed one myself :doah:
There are some used ones on ebay (part number is 33677a) If you need new, Flyods has a 1994 built SBH for early application with a small taper crank in it they have been sitting on for awhile. Its a large valve block still too. Only downside is it has a topfill side cover, but still a good deal overall if you do the math. They had the early recreational version one that they posted up at the same time as this one last year that I bought (ball bearing with small taper loaded into the same late block) It was clean and perfect shape/stored well so its a good to work with.
Heres the link to that SBH
https://www.ebay.com/itm/NOS-Tecums...e=STRK:MEBIDX:IT&_trksid=p2060353.m1438.l2649