he wants me to make sure I have the instructions on how to manually change the settings in Mach3 to make adjustments to the cut path
Cut3d should produce usable g code for implementation by Mach if the correct post processor is used.
You should not need to do anything other than set the tool at some location and run the program.
SO
I am guessing what you are meaning is that he wants to know how to setup / configure your machine.
Frankly, that should be in place before he even gets there and you should have done some reading ( like the manual).
All of this is not just plug and play!
Get your machine working properly, then understand the software that you will be using so the generated code is correct, then do some learning on how Mach works.
By all means do some trial cutting to gain experience.
RICH