Of course that's counting on there not being any servants around....there's two there out of a total of six. Assassin is going to kill lancer leaving two other possible enemy servants there. Trust me even if you fight him you'll have a hard time if only because this area is going to be one big mess and the fire department is coming.

The big question is. Do you want to turn this into Fate/Zero without Lancelot coming in with his big spooky black armor and less Artoria?