2013 Toyota Land Cruiser 5.7L V8 93,500 miles. Serviced religiously at Toyota Dealership and every service interval and all recommended maintenance has been done for the past decade. I recently noticed the beginning of the engine oil seep (or leak) in the timing cover. Smelled oil burning on the exhaust, and a light tick noise on the drivers side of engine (with cold starts for 30 seconds or so). The Toyota Tech verified I am dealing with the infamous Cam Tower Leaks, Timing Cover Leak, Valley Plate Coolant Leak, and Chain Tensioner issue. The Toyota Dealership only recommended some repairs including resealing the valley plate with new sealant, replacing a bunch of gaskets, 2 chain tensioners, and cam tower seals. But curious how far people go with replacing parts at this point... the dealership basically did not recommend replacing the chain, 2 of the lower chain tensioners (only the top 2, heat exchange, valley plate, water pump, or the thermostat. I suppose there has to be a stopping point with this project but just wanted to knock out the common issues while the engine is open and we have access to replace parts. Or is this a lemon I am dealing with and just need to trade in. Thank you