You'd be surprised what people are willing to pay. I sold mine for a very decent price, not 51k, but enough to take the sting off the build for sure.
The build on that thing is "interesting". Cheap front axle, cheap tires, pretty much cheap everything besides the atlas. The more I look at it...
I think I went with "the beast" also (whichever one monster transmissions sells). I also went with the upgraded steel and friction plates.
I can't find my 4l60e rebuild manual. The th350/400 one is here, so I'm guessing i loaned it out, sorry.
The manual is cheap on Amazon, and you'll want to...
I'd take a look at some corbeau or Recaro seats before settling on the PRP seats. I liked my PRP seats (custom colors, $$$, "top of the line"), but in comparison to corbeau, cobra, recaro, the quality was crap.
When I went from duals in my last 40 to a 3.8 atlas, I thought I'd miss the gearing options, but didn't. I think the 4:1 option is damn near perfect (3:1 is great if you have HP, balls, and can drive).
FJ40, in the best color ever. Good shape, and tasteful, simple mods> than linked 40/buggy.
I kid you not, if you decide to cut and link this thing, slap yourself. After said slapping, post it for sale. Take sale money, and build a buggy with a 40 bezel and hood.
Take a look at the dodge dakota leaves. 56" off-center, plentiful at the pick-n-pull, and very flexible. Easy to set up some custom packs as well.
As Chad stated, I'd avoid a shackle reversal.
A link suspension is a hell of a lot more expensive than springs (I've done SOA and a four link on...
My neighbor is on the mend from it now (not diagnosed, but his office was a hotspot in the area with three people diagnosed) and my wife's friend is on the mend as well. The wife's friend is my neighbors coworker.