I don't believe I can get that last bolt started and tight with the fan/pulley installed. I'm going to put the pump on first and then try to get the fan/pulley bolted to the hub.

'Nuther question. I have a standard heater and the water pump has a threaded pipe that is screwed into a hole by the outlet that the heater hose attaches to. Will a new water pump have that pipe or will I need to remove the one from the old pump to put on the new pump?