It's really the guides I'm concerned about...not so much the chain. But it makes no sense to tear the engine down to this level to change guides, and not change the chain. There is a guy on another forum who stated that the chain in his V12 let go at 100,000 miles. And yes, I know, I know, the car cost $130,300 brand new not counting taxes and gas guzzler tax, so I should expect the maintenance cost to match. Just because I happen to own a V12, doesn't automatically put me in the income bracket of the person that bought this car new. I am but a simple office worker, who has long wanted a vehicle like this. I get no sympathy from you guys!
It's the darn tooling cost that's really bugging me. I suspect that most of the tools are not absolutely necessary. For example, the separating tool...I'll bet a Dremel tool could be used to carefully grind off a rivet head instead of spending $250 for the separating tool.