It just sounds like he doesn't want to work on an old vehicle and he's making up excuses not to. There's nothing difficult about the relocation plate- - - -it replaces the rear plate on a 216/early 235 water pump and requires drilling/tapping two holes in the front of the block. I taught high school auto mechanics for over 30 years, and just about any of my first-year rookies could have accomplished that job in a couple of hours.
Jerry
There's no need to start trashing people you don't know a thing about... He does a darn good job but may have gotten bad info from somewhere. No one knows everything...not even you.