The turbo system would be priced about the same as the supercharger , but would give greatly increased torque and horsepower over the supercharger setup. I know this because I manufacture and sell turbo systems for the Ford Lightning pickups. My own personal 1994 Lightning has over 125,000 miles on the original turbo system I installed in 1995. It has 512 hp at the wheels and 710 torque. It runs low 11 second quarter miles, is quiet , emmission legal and as reliable as a rock. I have dynoed many v10 trucks and vans,some with superchargers and have yet to see one make over 290 hp at the wheels with around 380 torque. The turbo system I am useing on my personal V10 super duty 4X4 is a modified Lightning system with a turbo sized for low end torque and quick response. I expect horsepower to be around 350 to 380 at lower boost and as high as 450 at around 10 psi. The torque at 6 psi should be around 450 to 480 at the wheels. This is with a small turbo and could easily be upgraded to much higher power levels.
Thank You for your questions......