Does anyone know where these can be purchased in the states? I've spent days trying to find them stateside.

 

Ask your local gas station if you can talk to the person they get replacement digits from. They may have surplus, for repairs, or can provide you with a vendor in the USA.

That's a 15" 7-segment (fuel station) display.

 

Yea I've tried that route already... All I get was "well, if you can get ahold of the store owner."