One thing consistent in GHB threads is that people pack gear for camping and they always think in 'business days'.
If your wife and kids are home alone in the dark waiting for you with the local yoots wandering the area.... I would think you would discard the idea of walking a 'day', laying up overnight and then resuming the trek.
More likely, if you are halfway fit - is to walk/jog at intervals in as direct a path as possible. Doing this, you should cover 3-5 mph depending on terrain. Even taking into account delays and assuming just ONE mph average, it is possible to cover 10,15,20,25 miles in less than one day (24hrs.)
Obviously, to do this, you are dumping the fire-making gear, dehydrated food, extra knives, batteries, gear, gunk, funk, junk and stuff. A small, small camelbak should be plenty. It holds enough water to keep you hydrated for a few hours, can hold a couple candy bars or packets of honey, a folded N95 mask, electricians pliers, small crowbar, a poncho, a tiny FAK with a little ducttape and motrin, maybe a mini am/fm radio or your Ham handheld if you have one. You should have your CCW and a knife on you already, right? You dress everyday in low-key clothes and sturdy walking shoes or have them in a bag in the car/office right?
The balloon goes up so... fill the camelbak, pop two motrin, drink as much as you can ram down your gullet, eat a Snickers and walk 100 yards, then jog 100 yards, rinse and repeat. If your feet give you crap, put some ducttape on the hot spots. Drink constantly and eat another snickers and a couple motrin every few hours. Keep one ear bud in and monitor am/fm broadcasts as you go. Encounter a fence? Cut a tie wire and slide under it. Need to hide for an hour/the day because of folks you don't want to meet? Duck into the brush under your poncho.
How much more do you really need if you are trying to Get Home as fast as humanly possible on foot? Speed, endurance and a sense of urgency are paramount, not gear.