Wow, gonna be an awesome build! cant wait to see the progress.

With a 5.2L coyote, I'd go with 3.73 gears in the IRS since redline is past 8500rpm. Why AOD automatic? why not a full sequential?

Also, please use full floating rotors from stoptech or brembo. The wilwood stuff doesn't float and you WILL get pad knockback, and the bigger the rotors will make that worse. Having confidence in brakes is critical, especially at the speeds this car will be capable of.

Have you looked into BOSH racing ABS?