That would definitely be the best part to end Volume 1. Where else can you end it? When I read the script I kept thinking “Holy fucking shit! Budd just killed the Bride! No one else could but he just did it and it was so easy for him!” The Sidewinder is my favorite character because he was the only one who could kick the Bride’s ass.
I think Paula Schultz is just some random grave Budd picked to bury her in. Maybe it does have some other meaning, and knowing Quentin, it should.