It's doable, for sure. I'm collecting parts for the same swap. Many have done it - search around the forum a bit. Here's a good link to get you started:
One thing that may be an issue is the 2000 4.0L block - I think they changed after 1998 or 1999, so you may have more issues. I stuck with a 1995 4.0L engine to keep things simple.
I also went Ford 8.8, as recommended above, but the Dana 44 would be similar in swap complexity.
If you are getting the drivetrain cheap enough, then it's worth it. It's a big job. Buy a good welder or make friends with a good welder.