Should I make the swap to G3?

You can get connectors from DIY HEMI. I don’t know what fuel delivery you have but would recommend an in tank pump and a corvette filter regulator. You will also need a flex plate for the trans. Good luck. I couldn’t have done mine in a weekend, I don’t plan very well. I did do my my Alterkation in a day with the motor still in the car. Keep us posted.