No. The only G4s with ADC(GBE, Cube, DA, QS, MDD) used AGP. And yes, the Sawtooth had AGP but no ADC capability.

Your B&W as well as the G4 PCI graphics (original G4 based on the B&W mobo) have only PCI slots.

Really, you would be best off just getting a LCD monitor from a PC shop.