I'm leery about ordering shoes off the 'net simply because you never know with the sizing. The idea of shipping boots back and forth to the tune of at least $15 a trip until I found some that fit doesn't appeal to me.
What you're looking for looks similar to, um, for lack of better description, what the leather boys wear at the Pump Jack. :P Regardless, they MUST be getting them from somewhere. Perhaps try a leather/fetish shop? They're basically a riding/motorcycle boot that's very, very plain. You might be able to find something that is a compromise...
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