Sniper and Trunk Battery help

Sorry for late addition. I do have a Ford style continuous duty relay PN ST85 to use for the starter.

Can anyone shed light on Cracked backs diagram on the placement of the feed wire from the alternator running through the post on the solenoid when putting in the Alternator shutdown relay solenoid?
Based on the Painless diagram I feel I need to reverse his diagram to the batter side first.

If you are out there CrackedBack your input would be greatly appreciated.