Seriously, once you get to the editing stage, names like that will turn into a nightmare.
most software will let you search specific strings. so like, “Will” != “will”
frankly that plus what the other guy’s comment said, this seems like a non-issue that you’re kind of responsible for if you just decide to seek no solution and truck through the significant extra labor.
I have found that many people’s problems in life are in fact caused by their own choices and refusal to find solutions.
You can search for " Ed " with spaces to get isolated instances of the name
Call them Will, but write Wilx. Find and replace at the end.