[Raptor]

If it was mine and I had that much time and money into the car, the pan would be off and the front case, pump gears be apart so I could check everything. Having any metal in the pan can cause damage to so many things, it isn't worth it to just guess and fix one problem when there could be many. The steel gears in the pump ride in an aluminum housing, any particles that make their way past the pickup screen will chew up that housing. Bearings and journals get destroyed by small particles as well. I would do everything I could to make sure that the bottom end is as clean and within spec as possible.

I won't speculate as to how this happened. You will most likely find out if you get it all ripped apart.