While I don't have a website you can go to, I do have another option before you go through an online source.
It's tradition on my campus for all of the fraternity and sorority members to get football-type jerseys after they are initiated. Some, if not all, of the organizations go through a local store that specializes in making jerseys for sports teams.
If you have one near you, you might want to ask if they could make some for you, and see if they have what you're looking for. With jerseys being so expensive to begin with, it could save you a lot on shipping costs.
Just a suggestion!