(Deep breathing) OK.... just pulled the trigger. Had the talk with Keith and ordered me an SB4000. I didn't copy the features list, but it includes....
Swamp Ash body
Greenburst finish, headstock to match
10" radius ebony fretboard with MOP blocks
Regular passive J99's.
White pearloid pickguard
Bling! MOP inlays on the control knobs, chrome hand guard, a detuner and straploks, ivory tusq nut.
And a final touch - the money for this is from my 2nd-place Jeopardy finish last July, when I answered (among other stupid things) "Who are the Def Cats?" for a clue about Def Leppard. So the bass has a white truss rod cover with "Who are Def Cats?" engraved on it.
Been drooling over getting one of these for YEARS. Now to wait another six weeks or so...
EDIT: just got an email back from Keith from a question I'd asked. They can put a PB4 neck (with slightly slimmer profile) on the SB.