89 GT top end kits?

So Im trying to decide. Edelbrock is $1700 but doesnt include EFI intake. Trick Flow is $2400 and is the winner cause they include push rods, EFI intake AND roller rockers! BUT they dont include the roller lifters for the roller cam. Is that because its ok to reuse stock roller lifters with the new cam? Also will the twisted wedge heads work with stock pistons? That would be my first question to the phone tech.

Anybody have first hand knowledge of this stuff?

Thanks