Thanks for the message!
You are correct in stating that the dual pass Mustang radiator (Model number MMRAD-MUS-79DP) moves the lower port over to the passenger side.
We suggest purchasing our universal flexible radiator hose, part number MMAH-U36 to complete the installation. We have provided a link to the product page below!
Please feel free to contact us directly at firstname.lastname@example.org if you have any additional questions!