slant six oil pressure sender is where?

I have been looking ALL over for the oil sending unit. I cannot find it for the life of me. All I know is that it's toward the passenger side of the neutral safety switch and to the drivers side of the AC unit. It's not on the back of the block, not near the oil pump that I can see, and not near the oil filter that I can see as well.

Anyone know the exact place of it? Thanks.