If you order oem original Ford motocraft it comes with the gasket already built into it. For any after market thermostat the part number is 35610-1 for a Fel Pro gasket from Advanced or obviously any where else that carries Fel Pro gaskets.
I have seen some people replace the water pump bolts, due to the fact that the longer ones pass through the timing cover. That does not make sense to me. Their torque should not yield these. It looked like you reused them, right?
