Escalade motor

[King16]

Bought the wife a new suv and have taken her 2007 Escalade to use motor and trans for my 67 c10 project. Looking for advice on what to do with that motor to up the hp to 600 plus. Should I use the stick trans and get it re flashed to be more aggressive or can I even do that. Stock is terrible. Also what electronics will I need to have the thing run properly. Need some advice before I rip the motor out and don’t forget anything that I would need and junk the rest of the vehicle.

Thanks