You'll need to inspect both sides of the seal very closely (like with a strong magnifying glass) to insure that there are no nicks or deep dents in the seal.
If you don't want a neww seal too, the other two parts will be $5.50.
Place your order through paypal to firstname.lastname@example.org
Be sure to include what you are ordering.
I do not handle that stuff through e-mail or forum posts.