As luck would have it, I just last week received a direct-ordered Stouffer 4x5 31-step calibrated transmission wedge from them. It's true they have no web site sales, and due to a strange set of circumstances I was unable to phone them directly (my issue, not theirs). So I emailed them the order. I concealed my credit card info by embedding it into a small bitmap image file which I attached to my email. They received it, figured it out nicely, and promptly sent me my wedge. It arrived about five or six business days later via UPS. This was exactly the proper delay for the distance it was shipped.
The only quirk in the transaction was that they never acknowledged my email, so I didn't realized everything had worked out until the package arrived. Other than that everything went perfect.
Ken