Well I did some investigation, I *think* it was leaking from under the intake manifold right behind the fuel lines, so I undid the lines and cleaned up the spot as best I could and gobbed the crap out of black RTV there. It definitely isn't the oil pressure sensor. Gonna let it cure for a couple days and see what happens.
Normally I wouldn't recommend this as a fix, but since I have put maybe 200-250 miles on it since I did the intake gaskets I know that a big hole hadn't been blown out yet and that most likely the seal was good elsewhere.
Also put the Rough Country stickers on the shocks and got up under the truck with some degreaser to clean up some of that oil
I checked the oil level and it is still good.
Edit: That point is where the manifold doesn't line up very well at all with the block, so it is a likely position also. Just thought of that after studying the pics I took.
Before:
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After haha:
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