DAVE E, so for reliability, chain tensioners and head studs are mandatory upgrades for the 3.0 for peace of mind? I suppose I shouldn't ask if either one of these go bad?

Any idea what labor/costs are for both of these to be completed?
INFRARED CAMERA, geez cross country trips like that certainly add creditability to the bullet proof notion.
I do plan on continuing the past history of the car and do some DE events. Although DE events are not as harsh on the engine as racing they are still hard miles. I suppose I'd to know:
1) Should I expect to rebuild the top end with 116,000 miles and 17 DE events? Any idea labor/parts cost?
2)How often does the short block need attention?
I'm new to these cars and I'm experienced in the "slippery slope" in other cars.Playing isn't free. Considering the history/mileage of the car anyone think it at least needs a top end rebuild?
DAVE E, INFRARED CAMERA Thanks for your replies