I was concerned that a tear down should be done. But, I have discussed the teardown with several very well respected Harley mechanics/tuners.
They seem to concur that a tear down shouldn't be required as the oil from the cam chest is filtered before going to other parts of the engine. Consequently, the piston oil jets and other internal areas should be safe (logic behind an oil filter I guess).
However, the pan must be removed and cleaned out or replaced. All oil passages must be cleaned out. Crank run-out should be inspected (which it has, looks good .003). All cam chest components as well as the lifters, pushrods and even rocker arms need to be changed. Possibly the heads should be removed to inspect the valves, springs and guides.
ESP has three years left on it, so if there are more problems, they will have to cover it all again. Kind of stupid to me that they would save a few $ today at the risk of Lots of $ later, but that is how insurance works???
i intend to pay the difference to replace some of the components. Current plan is S&S Premium lifters, HD SE Cam plate and SE oil pump, Timken bearings and most likely a Tman 625 cam (as I am considering the 117 kit at the same time).
I hope these components do not preclude future ESP coverage, and would like to think that better parts should not void coverage.