ive got a 3rz/w56/duals w/4.7's in my 90 4runner and it has platy of power around town and to go 95 down the interstate. it has 35's with 4.88s and a spool in the rear too. you will love the 3rz swap.
I have at least a thousand pounds on you though. 40s with 17" steelies and 1tons.
Im hoping it will be worth it. TO an extent anyway. I know its still going to be gutless. I just hope its a little less gutless. Granted it was a single cab taco, i was able to go 75 up a grade that i could only hit at about 50 in my runner. Im hoping i could at least hit 60 with a 3rz