I second Bk's comment about not being cheap. Motor swaps are always pricey......unless you just happen to have all the parts on hand and for free. My 3.4L cost $4,500.
I bet it could be pulled off (and still done right) for around $3,000 though. I went a little overboard and replaced a lot of stuff.....clutch, timing belt, W/P, alternator and spared no expence when I was buying parts.....so it all costed me a little. But, I've got no problems, the whole thing went rather smootly and I LOVE the power.

'93 4Runner - 3.4L 5VZ-FE, 2" body lift, on-board-air system, custom gauge cluster, rear e-locker, electric fan, custom built front and rear bumpers, sliders, 4,88 gears...all on 33x12.5's.