It is one of the easier swaps, and your tranny will bolt right up as well as your motor mounts. I would suggest buying a pre-made wire harness from Off Road Solutions.
Give Mike a call. He is busy and will probably have to call you back, but he is a great guy who does very good work. Start your research here:
http://www.offroadsolutions.com/technicalarticles.htm

-Bill
'87 4Runner w/ '96 5VZ-FE, 'Red Chili II'
'97 Taco XtraCab 3RZ-FE, 'BlackBean'
TLCA # 13257, Rising Sun 4x4 Club Land Use Coordinator
"He who stops being better stops being good." -Oliver Cromwell