Help finishing Engine Replacement '97
 

Last owner blew the engine so they sold me the car for extremely cheap. The car is a '97 White Miata. The replacement engine is from a '96 miata.
I (hopefully) have everything plugged in and ready to go except for a few things that I need a little bit of help finding where they belong.

IF I remember correctly, the 2 pipes below the radiator are fill/drain ports. I can find the plugs to block them/go buy some if needed
I have no idea where the pipe that faces down to under the engine bay connects to.
The remaining 2 plugs, I also cannot find where they belong. Can anybody assist me in finding where these go. My google-fu skills aren't that great when it comes to cars.

EDIT: the cable near the intake manifold is a "temperature sensor that leads to dash"...currently looking for the wire this sensor connects to

EDIT2: Googe-fu skills, I believe I can leave the 2 pipes at the bottom of the radiator as is b/c their for automatic transmissions and nothing will leak out

Yes, the two brass-looking tubes are just for AT cars. You can leave them open, or cap them if you care whether or not spiders crawl up in there and die.

The "pipe that faces down to under the engine bay" looks like it might have something to do with the PS pump reservoir? Edit: maybe not. What's the black cylindrical thing on the passenger side of the engine bay? Might be something to do with that. Carbon canister?