Hemi Swap standard AC

I am putting a 6.4 hemi into my 74 duster, the duster had factory ac with the 318.
I originally was going to delete the ac however then means i need to play about with the belt system and also having two young kids cruising with no ac may be painful. My other weekender has ac and has come in handy on super hot days.

What do i need to do to get the factory Duster ac to work with the ac compressor that comes with the hemi?
I have had a search and couldn't find info, whats involved from wiring, to parts that need altering or changing.
Currently my entire car is stripped down so i will rebuild the heater box as well.