You know, I almost forgot to mention a thunk I had.
Holmes (as adapted by me) has a total of four classes and seven subclasses. For the record, they look like this:
Obviously, basic symmetry demands an additional subclass to go under the Thief heading.
I am very seriously considering an adaptation of the bard for the gig, though it will be a lot simpler (i.e. "Holmesian") than what you've seen in the past. I found a copy of The Strategic Review in which a suggested bard first appeared (penned by Doug Schwegman, February 1976). It is the clear precursor to Gygax's appendix class in the AD&D PHB and is a "hodgepodge" of Norse skald, Celtic bard, and southern European minstrel (the author describes it as such). Unlike the PHB version, there is no "class switching" involved in the class's progression...it actually looks quite a bit like the version I cobbled together for my B/X Companion and (later) developed for The Complete B/X Adventurer.
my post on thieves and assassins, I think the bard is an easy subclass fit under the thief (despite being its own class in AD&D), and...well, if I'm going to do a half-orc, I might as well round out the class list to twelve.
Hey...six races (human, elf, dwarf, halfling, half-elf, half-orc) and twelve classes. There's some nice symmetry there, too. I'll take it as a (positive) sign.