Bigger front and rear brakes help obviously. I have bigger F-150 brakes in front since I did my SAS -- larger piston area than the Ranger.
Soon a drum axle from an F-150 is going in the rear with 3" wide shoes. Still drums but it should be much better.
Overall though, I can lock up the tires with the F-150 front and I could barely if ever do it with the Ranger brakes after I put 35's on.
Reinforced rubber lines (like the "stainless" lines mentioned) do reduce blooming with hard pedal pressure. You have to step down harder to stop now and that extra pressure stretches the rubber lines more. That's where the better braking comes in with that.
There are newer synthetic brake fluids that don't boil as easily and take much more heat before vapor induced fading occurs. The disadvantage is to make use of them you have to purge your entire brake system.
Getting an FX4 31 spline rear that bolts up, or an Explorer rear is a great idea. The Explorer rear from the right years will come with discs, and discs are a bolt up to the FX4 31 spline rear. Only disadvantage of the Explorer rear of course is that you have to modify it to bolt it on the Ranger.