Hydraulic clutch fundamentals

While my particular applications arent an a body
I have 2 projects for which I am wanting to convert to a hydraulic clutch. One a D150 and one an F body, both mopars. Both factory automatic vehicles. I have factory clutch pedals here for both.
While I know that the Dodge trucks just a year or 2 newer than mine came factory with a hydraulic clutch, back when I first talked about (possibly) adapting a factory truck hydraulic setup to the F body wouldn't work because those systems "suck"
so I'd be better off to start from scratch and go with a tilton/McLeod/wilwood setup. While I never got any reasons why the stock systems "sucked" I have a used setup here from a 92/93ish D250 with a diesel here. It really don't look all that different from what I have had on my (factory equipped) Dakotas and wrangler-- which I know for a fact that those two take the exact same hydraulic setup as each other. I didn't seem to have any problem with either of those so I don't get why people claim that system "sucks". It's a matched system where the master and slave bore diameters are matched and calibrated to each other. Being plastic they do seem a lil chincey.. and good thing they're available assembled and pre bled as there is no bleeder on either cylinder. And both components can be bought separately so there would have to be a way to bleed them. That, I can see being sucky to accomplish.

I've looked around online til I'm about blue in the face.... I can't find a bit of info to tie together any sort of relationship in bore/stroke size desired between master and slave cylinder sizes. I know the circle track guys use wilwood stuff all the time as do people with older hot rods such as the "T bucket era".
If someone were to want to build an aftermarket system how do you determine which master and which slave to pair up? Would internal slave be a better option? Do they even make such an animal for tranny's such as an 833OD? Do they work ok with borg and beck style pressure plates or is a diaphragm necessary? Going back to the Dakotas and wranglers I have owned they all were diaphragm clutch. I just got a new clutch kit for my D150 and they (rock auto) sent a 3 finger style. Even though the pix associated with this PN show a diaphragm pressure plate.
The only thing I CAN seem to find is info about pedal ratio.
And we're not talking Shivvys or fox body mustang, where there are "matched retrofits" galore ... Being Mopar we are typically "on our own" to figure out. Hard to do without info to help determine parameters that "go together". And buying multiples, installing each and "trying them" then buying another to try and dial in a setup is too cost prohibive// for me anyways