Thanks for your input. I did watch the recent Car Care Nut video before posting this. I also watched AMD's video about the LX vs the Land Cruiser awhile back and he calls out the Cam Tower Leak in that video as a possible issue, that is what brought this to my attention.
I wanted to get details more specific to the 200 series and see if anyone else has dealt with this and what their parts list included. My Dealership did not recommend water pump, thermostat, PCV value, Heat Exchanger, or replacing the valley plate as AMD did, so wanted to get some more opinions on the matter. Hopefully the LC has some better parts but I really don't know. I did ask that the water pump, thermostat be replaced as well. I think I caught it early enough that the time chain and the lower chain tensioners are ok. There is a long list of gaskets and seals to be replaced and I know the Toyota Dealership does this job quite often. Toyota quoted about $3500 which included around 17 hrs of labor. Plus I had them add on the water pump and thermostat, so probably another couple hundred dollars.