Thom_y:
Congrats on getting your listening room together and buying your equipment.
As you seem to recognize, aftermarket power cords for source components can be quite tricky, as most have filtering characteristics that can really affect the sound of the component. In fact, much of the better equipment is voiced carefully around specific power cords. As for the Kimber on the EMM gear, it is a 14-gauge "PK-14 Gold", which is not a shabby cable -- it was no doubt chosen quite deliberately.
Jtinn has a lot of experience with your question -- ask him.