Do the LIM gaskets. Likely one blew out into the lifter valley.

To spin the motor w/o fuel and spark, simply leave the ICM connector unhooked. If that were mine, I'd do the gaskets, drop in a fresh cheap oil change. crank it a bit and look at the dipstick. If not foamy or crazy, start the car and let it run a minute. DRain and do another oil change. Repeat until your oil is clean and decent again.