Do you happen to have a 27mm deep socket to rotate the engine by hand, using the crankshaft bolt?

I'm curious to see if this engine is rotating freely. You should be able to turn it with a 1/2" socket wrench using a decent amount of arm strength from underneath the vehicle.

If you cannot turn it with this wrench, then things are starting to look bleak.

It would be unlikely that the starter has given up the ghost, simultaneous with your broken cooler lines. Too coincedental.