Trigger: Battery (+) > Ignition-on > Oil pressure safety switch > Relay trigger terminal 86 > Relay ground terminal 85 > Ground;
Power: Battery (+) > Relay power input terminal > Relay power output terminal > Fuel pump (+) terminal > [pump operates] > Fuel pump (-) terminal > Ground.

Most of this was simple enough for my smooth brain to understand but i'm a bit lost on the ignition-on part, what exactly do i connect to next to the battery?

If you're willing it'd be much easier (for me) if you post a few pics as it's much simpler for me to get the hang of stuff visually than otherwise. Again, thank you for all the help so far and i owe you tremendously.