I got the Vac pump removed, and all the roller bearings were intact, and undamaged. I couldn't see any physical damage on the unit, just a little rust here and there. I removed the Valve cover again to inspect the chain. The chain does look shiny and relatively new. However, at least one of the chain links has been damaged. This was probably from the outer roller bearing race I found under the valve cover.

Did I dodge a bullet here? Could one of the previous owners replaced the chain and pump, leaving the old metal shards in the engine, causing the new chain to become damaged?

Guess Ill add a timing chain to the list! are there any other components that could dump roller bearing/ chunks of metal in the pan? The strangest piece is the cylinder with a small ID from the first Pic I uploaded of the debris.

Ill try to post a pic of the chain and Vac pump