They were in the front timing cover, pass side Assuming you are using a font sump, not rear. This quick pic should help. There are several
oil pan configurations. I can never get pics right, so here are some basic links to see.
https://www.vintage-mustang.com/atta...42-jpg.696350/
https://www.google.com/url?sa=i&url=...AAAAAdAAAAABAD
https://www.corral.net/attachments/t...ers-jpg.83189/
Well I see after looking at your build photos, you have EFI, way different story. They use reverse rotation water pumps which have a totally different pump mounting pattern. Also there are two types (length) of pumps. The shorter being the Explorer 5.0l. Ford Racing used to sell those conversions in kit form. Use this info instead. It will be way easier than a long winded explanation from me.
https://www.motortrend.com/how-to/pi...p-interchange/
In a nutshell, you can drill your stock cover to accept the front dipstick, or purchase a replacement listed in the Motor Trend article (Ford Performance Parts PN M-6059-D351) just pay attention to which type of back cover holes on the water pump. I think you would have a heck of a time trying to clear all the power steering pump bracket. I wold just get the correct
oil pan again.
Interesting they used the explore intake vice the usual truck intake.