Go to your local bus barn with pictures or drive the bus there and ask where they buy there's from.
Just look for the actual garage and drive in and park off to the side like your another bus in there lot or out of the way period in a car/truck .
Walk in and look for the oldest man there.
A lot more respectful than some of the younger ones?
Know matter how young they are if just a little rude.
The second you respond with yes sir/mam,NO mam/sir they usually give you the one you ask for or turn into complete buttheads where you can raise your voice that gets the older man's attention who is usually in charge of the garage.
Have only been in a few bar fights but I have started many a garage discussion among employees?