Sounds like a good build should have enough for 500WHP ..

BB isn't needed and is a waste of money and the megasquirt will be fine tuned a car the other day made 616whp on it ..

Eagle rods are also fine . I've had problems with 750 $ Pauter and 980 $ Carillo rods , everything has a small issue . Tuned many cars with eagles to over 650whp