Im working on a Ford HP 60 swap & 14 Bolt rear,
I want to know what brake mods ate the best for my set-up?

I have Dana 60 stock, large 2 piston calipers up front.
Rear disc conversion in back on the 14 bolt, I'm guessing they use front Chevy 3/4 - 1/2 ton single piston Dana 44 calipers.

I'm not replacing the booster, I've read the '88 Jeep boosters are good.
My main question is this:

What Master Cylinder should I get?
-I read about people using ZJ cylinders... E350 cylinders & Grand Marquis.

I want an inexpensive master cylinder that bolts right up.
Whatever Prop Valve is needed I will get, Summit sells an Adjustable Prop valve that isn't expensive. Are these good?

Any info would be great.

On the calipers,have you thought about aftermarket?You can find used Wilwood etc. on E-bay for cheap.I think Ruf-stuff makes 14b brackets.

Thats not what I asked.

I have an 88 booster, 79d60 and a14bolt. I chose to use the big ford dual piston calipers front and rear. I made my own brackets for the rear calipers. it was expensive, and unnecessary. I would not do it again.

second time around I would run chevy 3/4ton calipers front and rear. you can get aftermarket brackets to mount a chevy 3/4ton calipers on your d60 front.
The 3/4 ton calipers are nice for the low cost and simplicity, you can also grind them to run 15in rims for paddle tires at the dunes or whatever...

The wilwoods I have seen mount the same as the 3/4ton calipers.

I ran the stock booster with a 86 E350 MC... whatever. I would not do that again. I would get two wilwood manual brake pedals, one for the front one for the rear. This would have made front digs alot quicker.

My current setup with no proportioning valve is what I like, I can front dig and my rear brakes over power my fronts. when in 4wd no proportioning valve is needed if you have spools all 4 tires turn at the same speed... I dont drive on the street.

I'm gonna be sticking with the big Ford dual calipers up front... Unless there is another bolt on option that is better? In back I'm buying the Chevy disc kit for the 14 bolt. I don't really do digs, plus I don't have the budget to buy Wilwood stuff.

Basically, I'm asking which master cylinder is best? Direct bolt on swap.
Another guy started a thread about various Dodge MCs... So my options are:
-ZJ
-Ram
-Durango
-E350
-Grand Marquis

I'm thinking the Dodge Ram MC might be a good bet for me.

It seems the more I read, there are many master cylinders that work well.
And the prop valve doesnt seem to matter.

My 88 MJ, how do I tell if my booster is a dual diaphram booster?
I'd like to keep it, if it is a dual I'll definately keep it. It's kinds rusty, but it works well.

Does anyone know if an 88 MJ booster is a dual?

The stock '88 MJ/XJ/YJ boosters are single diaphragms. They operate marginally, at best. If your going to use the calipers you've indicated, I'd say an upgrade in MC volume is called for.
Too much volume, such as you would get from a bore size of 1.25, or greater, would give you a very hard pedal, and significantly reduce your effective braking. Unless, you also upgrade to a dual diaphragm booster as well. You may get away with a 1.125 bore, without a booster upgrade, especially if you modify your pedal ratio. Unfortunately, increasing the ratio will result in a very low pedal while hard braking.
As far as the MC goes, you should use one that is compatible with 4-wheel disc applications, and, of course, compatible with the booster you ultimately decide to run.