Will the life of my Engine and Drivetrain be adversely affected with the BPU mods?
Yes, but not by a significant amount. If the car is maintained properly, and the car is treated with some respect for the components, you should maintain much of the power trains life. Which considering the fact that the Supra is by far one of the most reliable and durable sports cars, it will last longer than most well maintained STOCK sports cars. The only Drivetrain components that will see a significantly shortened life will be the stock clutch. It will more than likely not last much longer than 8-10k miles once at BPU. This especially holds true if the car is making repeated high speed runs using 5th and 6th gear at wide open throttle. If your stock clutch has high mileage on it, or is already starting to slip, you will need to plan on a new high-performance clutch.
