Engine swap possible or forced induction

I have a perfectly well running v8 limited 4Runner that I love! Even though it has a v8, I would love to have more power. I'm not interested in buying a Tundra/Sequoia, I want to make something of a sleeper SUV. I've looked at full exhaust, cold air intake, supercharger, throttle body, headers, and other upgrades. Underground racing has a supercharger they say increases 100whp instantly. 270hp at crank 230whp currently plus 10/12k worth of performance upgrades should add say 150whp so id be at 380whp. If we're to spend $12,000.00 on upgrades it'd still be cheaper than buying a newer vehicle with more stock power. My question is would I be able to add that much power without anything else? Would the block hold that much? Driveshaft, etc? Would it be possible to do an engine swap for a Chevrolet small block? Thanks a bunch.