I stretch most of my (left) shoes with a broom handle, right where they are tight at the ball of my foot. My Tahos were easy to stretch, don't know how much a road shoe would stretch. Do you need more room than what you can get by stretching the shoes?
Who does custom bike shoes? that could be a very cool business to be in... (gears are grinding in Knotted's head, always looking for new things to investigate)
"If Americans want to live the American Dream, they should go to Denmark." - Richard Wilkinson