Welcome Quincy, what kind of a Roadster kit? Cobra replica ? Model A? Duece?... Any 428 is a cool motor to use, it's a great choice and it sounds like the price is right too!

Around here there's a saying that goes, "Plan the work then work the plan". Now that you've got a motor, you'll need to decide what trans and rearend, then what's it going into?

I'd suggest that before you spend monies on a rebuild you have the other pieces in hand first. For alot of us it's more about the build so we'll be thrilled when you can share pics with us. And again, welcome!