I'm no expert but I believe the factory wheels would be near neutral offset..
according to this looks like .25" offset
https://ricksontruckwheels.com/wheels-oe.php
a lot of those ford accurides are mounted on trucks in this forum..
I actually have two five-wheel sets but haven't mounted any of them yet, so I'm no help..
hopefully someone can speak up soon, I doubt those wheels/tires will last long..
new rubber near full tread Goodyear wranglers are worth the fare alone in that deal..
more thorough searching threads here may turn up some info but I struggle finding stuff unless I posted it LoL
I'm slammed with work n chores but if you absolutely need it, I may be able to help with pickup depending how far you are, I'm a good 30-40 min from montebello..
good luck!