I also have to agree that a swap from the 22re to the 3.0 would not be worth it.
If you are going to go V6 check out
www.offroad solutions.com for their 3.4 swap.
I think you would be better off with a built 22r.
Just my
I have a 94 4-runner with a 3.0 and check out my screen name NO POWER.