Looks like a nice kit. The internal DSU battery is dead (DeadLith), but that's as expected. Too bad that the keyboard cable is missing - considering the price it should be a complete kit. Expensive? Absolutely. But it's a rare camera. Will be an interesting auction to follow.
For future reference - this is an almost complete DCS 100 kit, incl. DSU, with a $2750 BIN price tag. Apparently, only the keyboard cable is missing. Original case, paperwork, etc. Winder serial K370-1761, Digital Back serial K370-0633, DSU serial K370-2851.