A guy to look up on the forum would be "Ibuildembig", I believe he's contemplated a Ford swap and he's full of knowledge... Another thing to look at would be the options that were factory in the Bronco, and V-8 Explorer. Even if they don't exactly fit, they'll give you a starting point to go by for knowledge of application and parts used...
Ford Explorer - Wikipedia, the free encyclopedia
Ford Bronco - Wikipedia, the free encyclopedia
Borg Warner 5-Speed Transmission Identification | eHow.com
This will help you in identifying which trans you'd like to use, from here look up which 4x4's had it as an option.
Just remember Wikipedia is not always 100% reliable, it takes a lot of research from that point until you find someone that's done it already.
Hope it helps... The are many options available, but we don't know your mechanical aptitude, or abilities, or background.
Good luck with the build, I happen to be a fan of the Mustang, I've owned 5 in total, but built 3 from bare bodies, a '68, a '74, and an '84. Of those three the '68 was the only one that had a V-8 originally (289) but the '74 and '84 were swapped TO V-8
; from a 6 cyl in the '74, and a 4cyl in the '84 (convertible). The other two that I owned were later model, factory V-8 cars that never needed anything more than minor perf. mods. My Bronco was originally a 6 cyl. It left my possession, as the same 6 cylinder. I was re-introduced to the Wrangler while the bronco was dying, and decided to invest in a jeep for it's sheer ability to do literally ANYTHING
, it's cool factor, as well as their infinite following, and aftermarket parts availability. I'm doing my first all-out 4x4 build now. It's a '79 CJ / '95 YJ / '75 Cherokee Chief (360 drive-train).
Well, good luck... See ya' in the forums...