One other thing you NEED for wheeling a manual is a starter interlock defeat switch.
It's very easy to do one in a Ranger. If you don't need the interlock just get the jumper that is installed at the factory on auto transmission version of your truck. If you want to retain the interlock, mount a switch on the dash that bypasses the clutch switch (same thing the jumper does).
Basically, from the factory your truck has a switch on the clutch pedal that won't allow the starter to engage unless the clutch is depressed.
This will get you killed on a hill.
If you ever have to stop partway up a hill, you turn OFF the engine and put the truck in 4-Lo 1st gear. Then when you can resume going back up the hill you just turn the key with the clutch out and the starter cranks the engine with the drivetrain engaged.
If the factory interlock is still on, unless you have 3 feet the truck is going to roll down the hill slightly while you are playing between brakes, clutch, and gas. When the clutch engages you are likely to spin, losing traction and then all kind of bad things can happen.
IMO the interlock defeat should be the first mod to a manual trans offroader.