Got her done.
Loosened the stock cooler and let it hang.
I was hoping I wouldn't but I had to drain the oil. I tried using an 8mm wrench, but the bolt started stripping. Had to get a socket on them.
Once the oil drains, then you can unbolt the oil lines from the engine.
Left side.
Right side.
Luckily the O-rings look brand new. Not even smashed.
Might as well wash the lines. Just tiny spot rust here and there. Maybe I'll order new ones or have them powder coated.