A professional podiatrist should be able to both verify your assessment of what size you need and offer options for where you can get them, if they are indeed exotic and not carried by normal retailers. They ought to have access to medical suppliers for exotic stuff.
Podiatrists can perscribe shoes? I should go go a podiatrists. I have 11 1/2 size feet with eeee w feet.i can never find shoes that actually fit. Like currently my shoes are 12 w and my feet feel near bound.