Purchased some #2 cable at skycraft. I brought it home and put it in position between the starter and the starter contactor, running it through the firewall in an existing hole made for wire. I plan to cut it to length then take it back to skycraft to have the ends put on.
There will be enough to make the #2 cable for the ground as well. I will also cut that to size and have ends put on during the same trip to skycraft.