Hydraulic Clutch Master Mounting Location

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I have an 85 d150 that I'm looking to convert to an 833 od, has a 727 in place now.
The bellhousing that came with my 833od that I plan on using, is out of an 86/87 truck, has the bracket on it for the factory hydraulic slave cylinder attached.
It also has the conventional z bar setup included with the clutch pedal rod and all the mechanical linkage for that style of actuation. I am only lacking the fork itself, to put in the mechanical actuation linkage. Looks like a collection of parts off of various year 81-87 trucks based on the tags on everything.
I am thinking that I would like to run a hydraulic setup. I found an all I piece master/line/slave assembly online for the OE setup. I have not bought it yet. I'm liking the idea of a wildwood/McLeod setup instead. Is there an external slave setup that works off a conventional clutch fork like the mechanical setup would? Would I be better to run one of their internal expanding hydraulic throw out bearing? I see many choices for clutch master cylinder bore available. How would I choose? Would like to utilize the OEM clutch pedal if at all possible no matter what actuation setup I go with.