Given that you opened the thread with incorrect data and assumptions that were badly skewed, and given that you're attempting to create a work-around for a "problem" that doesn't exist, it's little wonder that you're seeking to follow the counsel of the only person in the thread with a failed career.
If your engine mount was improperly repaired in 1986, who has been signing off the annual inspections in the intervening 29 years? More importantly, who signed off the last annual, and do you intend to ever use them again?
Aviation is about judgement.