AP-1 Clubheads

I know there are a lot of people in the forum that have the hobby of making/tweaking their own clubs.  My question to the group is if it is possible to just order AP-1 clubheads (with no shafts)?  If it is possible to just order the clubheads, is it cheaper, since you would be installing your own shafts and grips? Who would you order them from?

To my knowledge, Titleist doesn't sell club heads only.