I ended up paying one of our forum members to perform this fix since I did not have the time to do it myself. My spark plug tubes were relatively new (recent DIY) so that was not the issue although the area still had a lot of evidence of the tube leak prior to my install. In addition to resealing the cam cover (passenger side), I also had the oil pan resealed since that was leaking. I'll have to keep an eye on it to see if it continues to leak. See before / after photos below.
For those of you in Southern California (specifically Orange County), Allen (aka healthservices in this forum), did a nice job of resealing and cleaning up the area. Feel free to reach out to him via PM if you need some help. He also works on BMWs and Mercedes.
BEFORE
AFTER
OIL PAN
