After 15 years of wheeling these trucks and having done a ton of different builds I am going to lay out the path that a lot of people take and you can then make your own conclusions as to why what you are asking is not done a lot.
Someone discovers an 80 series platform by accident. Goes wheeling with his buddies one Sunday while still stock and blows away the stock Jeep and 4Runners with them. He is stoked, his wife/girlfriend really likes the 80 as well. He washes it and takes her do dinner on Sunday night. He is really stoked that he has this awesome rig that can spank his buddies trucks and still be nice to go to dinner with.
Wheels starts turning, Woody's exceptional use of Google comes into play and he discovers ih8mud. Now he is excited. Maybe just need a little lift, no maybe needs 4", oh but everyone says 37's are the new 33's. These trucks swallow up those tires. OK, I want a bad-ass truck that can as you state it take the kid to daycare and wheel the Rubicon without a scratch. But look at Google Images. 80 does not flex for sh#(&$t in the front. Need to do something about this.
Fast forward 6 months. Truck looks bad-ass on 37's. Flexes like mad in the ruts next to the road and on the ramp. We are going to run the Rubicon, but we have to go shopping first. Girlfriend/scare does not want to drive the truck. Too tall, funny handling plus your comments on "be careful, it is not a race car" plays in her mind. She takes the Honda Civic. Your pride is a little hurt, but hey you are going to wheel the snot out of it, so it is ok.
Fast forward to Sunday after the Riubicon. You get back on mud. Search for used birfields, and why does it not want to steer. What is wrong with your steering system. Oh, and who makes the best tie-rod. Slee or Bud Built. 3 Months later you hasve hydro assist, new chromo birf from JT's and all the armor and upgraded links you can throw a stick at.
Cruise Moab is coming up, yes, going to wheel Pritchett Canyon. Super cool. Fast forward Monday. Mud to the rescue again. Search Phrase "Is Pritchett Canyon a legal road. Can I claim from my insurance. I caved the rear quarter panel in."
Oh, and need some more birfields. Or what is involved with a Dana 60 swap. What is the best tow rig. Do I need a 18' or 20' ft trailer. I am going to buy a 100 for the wife/girlfriend. Can it tow the 80 safely? I promise I am not going to mod the 100. She says she does not want another "red neck truck". You google, "what happened to my girlfriend/wive?" Why does she not like my truck anymore. It is such and awesome dual purpose truck. I simply do not understand it.