You don't want much, do you? Halfrounds, in black, extra long scale! Best of luck with that one!!
Hambone, I believe DR do the Black Beauties - you've probably heard of these. I don't know whether the scale would be long enough, though, or whether they'd be smooth enough for a fretless. Actually, I've always found rounds on a fretless to be fine, very little wear - depends on playing style as much as anything I believe. That said, I'm currently using Dean Markley Fretmasters on my fretless; roundwounds that are polished smoother over the fingerboard section of the string. Not in black, though...
Anyway, a better alternative may be the Black Diamonds - these are nickel roundwounds that are said to have a pretty smooth feel.
http://www.bill-lewington.com/black/black500b.htm
Again, you'd need to check with the manufacturer to find out if the scale is long enough.
Let us know what you find.
EDIT Just checked the link by the way - great looking bass!! Some lucky SOB's in for that one...