Welcome to the club, quadzilla. That's a nice looking Bassstar.
I don't think I'm mistaken, but the Modulus/Alembic relationship had Modulus making necks for Alembic, not Alembic making bodies for Modulus.
The knobs themselves aren't specific to Alembic. I think I've read that the knobs are a mil-spec, off the shelf variety. I like the big, top hat style you show.
It's close to siesta time for me, so I might be a little fuzzy about the information.