Starter Relay Wiring

That's the thing, I'm not sure how to wire this combo to work as it should, and it's especially confusing because it's somewhere between stock and modified such that some wires are factory correct and others are either missing or snipped off :/
At this point I would just want to know opinions on which route to take as far as trying to fix what's there or start with a more complete wiring set and modify it myself