I would tear the eng completly down and clean it all just like an overhaul. Seen the metal from a worn lobe get everywhere.
As for the cam I would call "Dwayne Porter" and talk with him. He speced and ground the solid flat tappet in my eng. On break in I used the Valvoline racing oil which has alot of the zinc in it and add a bottle of the zinc additive. And of course use the cam lube on the cam lobes. I also removed the inner springs when I broke in my cam that Dwayne did for me. Also have the cam Nitrided. I had no problems at all breaking in that cam 2 years ago. If you would want Dwayne's number just let me know. Ron