If I were building something along the lines of what you are talking about it would be a 95-100" WB, pick your suspension.... Tracker 16V engine and manual trans to a kicker 4 and married to a sami t-case with your choice of low range gears. Then run toyota axles and some 35's.
It's about as simple as you can get while keeping a lot of functionality.
If I were building another one, I wouldnt waste my time with all the sami BS. I'd swap toyota axles into a 99+ 2 door tracker and save the engine swap and get some A/C and nice perks to make the trail more comfortable.