Damn man, props on doing this all on jack stands! I rebuilt my front end on jack stands after my fender bender and di some maintenance items like the oil pan gasket. So much easier with a lift but almost everything can be done on the stands!

Really wish I could say my oil pan was as clean as yours. It took an hour to remove all the scorch lines, previous owner did not do good Maintenance

Do you plan on keeping the A/T or going to swap that too?

Also, I've seen a few coolant pipe O-rings like that before. Maybe they weren't pre-lubed going in? Or they were just jammed into the holes. I did this by accident with my dipstick tube and ruined that O-ring. When I smoked tested the car I was like wtf? But luckily a really cheap O-ring was the fix.

How much did the inside sensor cost you? Also, what does this do?! lol