It is a 124 and it is definitely a 603 engine. The puddle of oil could very well be soot/condensation.
It has been cranked several times. I was at the shop cranking it myself for roughly 5 minutes in 30 second increments while the mechanic was under the hood. He was loosening the fuel lines, and said that fuel was getting to each injector, but not enough pressure.
I will have to get a picture tomorrow.